java.lang.Object
- org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
- - org.eclipse.persistence.jpa.jpql.AbstractValidator
  - - org.eclipse.persistence.jpa.jpql.AbstractGrammarValidator

All Implemented Interfaces:

ExpressionVisitor

Direct Known Subclasses:

EclipseLinkGrammarValidator
```
public abstract class AbstractGrammarValidator
extends AbstractValidator
```
The base validator responsible to gather the problems found in a JPQL query by validating it against the provided JPQL grammar. The semantic of the JPQL query is not validated by this visitor.
Provisional API: This interface is part of an interim API that is still under development and expected to change significantly before reaching stability. It is available at this early stage to solicit feedback from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken (repeatedly) as the API evolves.

Author:

Pascal Filion

See Also:

AbstractSemanticValidator

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`protected static class`	`AbstractGrammarValidator.AbstractCollectionValidator`	This validate is responsible to validate the collection of `Expressions`: Making sure they are all separated by a comma or by a space (depending on which one is required); Making sure it does not end with a comma; There is no empty expression between two commas.
`protected static class`	`AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<T extends AbstractDoubleEncapsulatedExpression>`
`protected static interface`	`AbstractGrammarValidator.AbstractEncapsulatedExpressionHelper<T extends AbstractEncapsulatedExpression>`	The root helper that validates any `AbstractEncapsulatedExpression`.
`protected static class`	`AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<T extends AbstractSingleEncapsulatedExpression>`	The abstract implementation of `AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper` which implements some of the methods since the behavior is the same for all subclasses of `AbstractSingleEncapsulatedExpression`.
`protected static class`	`AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<T extends AbstractTripleEncapsulatedExpression>`
`protected static class`	`AbstractGrammarValidator.CollectionExpressionVisitor`	This visitor retrieves the `CollectionExpression` if it is visited.
`protected static class`	`AbstractGrammarValidator.CollectionSeparatedByCommaValidator`	This validator validates a `CollectionExpression` by making sure each item is separated by a comma.
`protected static class`	`AbstractGrammarValidator.CollectionSeparatedBySpaceValidator`	This validator validates a `CollectionExpression` by making sure each item is not separated by a comma.
`protected static class`	`AbstractGrammarValidator.ComparisonExpressionVisitor`
`protected static class`	`AbstractGrammarValidator.DateTimeVisitor`
`protected static class`	`AbstractGrammarValidator.NullExpressionVisitor`	This visitor checks to see if the visited expression is `NullExpression`.

Nested classes/interfaces inherited from class org.eclipse.persistence.jpa.jpql.AbstractValidator
AbstractValidator.BypassChildCollectionExpressionVisitor, AbstractValidator.BypassParentSubExpressionVisitor, AbstractValidator.ChildrenCollectorVisitor, AbstractValidator.JPQLQueryBNFValidator, AbstractValidator.NestedArrayVisitor, AbstractValidator.OwningClauseVisitor, AbstractValidator.OwningStatementVisitor, AbstractValidator.SubqueryVisitor

Constructor Summary

Constructors
Modifier Constructor Description

protected AbstractGrammarValidator(JPQLGrammar jpqlGrammar)
Creates a new AbstractGrammarValidator.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AbsExpression>`	`absExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AllOrAnyExpression>`	`allOrAnyExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AvgFunction>`	`avgFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AbsExpression>`	`buildAbsExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AllOrAnyExpression>`	`buildAllOrAnyExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AvgFunction>`	`buildAvgFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CoalesceExpression>`	`buildCoalesceExpressionHelper()`
`protected AbstractGrammarValidator.CollectionExpressionVisitor`	`buildCollectionExpressionVisitor()`	Creates a visitor that collects the `CollectionExpression` if it's been visited.
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ConcatExpression>`	`buildConcatExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CountFunction>`	`buildCountFunctionHelper()`
`protected AbstractGrammarValidator.DateTimeVisitor`	`buildDateTimeVisitor()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<EntryExpression>`	`buildEntryExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ExistsExpression>`	`buildExistsExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<FunctionExpression>`	`buildFunctionExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<IndexExpression>`	`buildIndexExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<KeyExpression>`	`buildKeyExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LengthExpression>`	`buildLengthExpressionHelper()`
`protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<LocateExpression>`	`buildLocateExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LowerExpression>`	`buildLowerExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MaxFunction>`	`buildMaxFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MinFunction>`	`buildMinFunctionHelper()`
`protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<ModExpression>`	`buildModExpressionHelper()`
`protected AbstractGrammarValidator.NullExpressionVisitor`	`buildNullExpressionVisitor()`	Creates a visitor that collects the `NullExpression` if it's been visited.
`protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<NullIfExpression>`	`buildNullIfExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ObjectExpression>`	`buildObjectExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SizeExpression>`	`buildSizeExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SqrtExpression>`	`buildSqrtExpressionHelper()`
`protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<SubstringExpression>`	`buildSubstringExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SumFunction>`	`buildSumFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TrimExpression>`	`buildTrimExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TypeExpression>`	`buildTypeExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<UpperExpression>`	`buildUpperExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ValueExpression>`	`buildValueExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CoalesceExpression>`	`coalesceExpressionHelper()`
`protected AbstractGrammarValidator.CollectionSeparatedByCommaValidator`	`collectionSeparatedByCommaValidator()`
`protected AbstractGrammarValidator.CollectionSeparatedBySpaceValidator`	`collectionSeparatedBySpaceValidator()`
`protected AbstractGrammarValidator.ComparisonExpressionVisitor`	`comparisonExpressionVisitor()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ConcatExpression>`	`concatExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CountFunction>`	`countFunctionHelper()`
`void`	`dispose()`	Disposes this visitor.
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<EntryExpression>`	`entryExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ExistsExpression>`	`existsExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<FunctionExpression>`	`functionExpressionHelper()`
`protected CollectionExpression`	`getCollectionExpression(Expression expression)`	Casts the given `Expression` to a `CollectionExpression` if it is actually an object of that type.
`protected AbstractGrammarValidator.CollectionExpressionVisitor`	`getCollectionExpressionVisitor()`	Returns the visitor that collects the `CollectionExpression` if it's been visited.
`protected AbstractGrammarValidator.DateTimeVisitor`	`getDateTimeVisitor()`
`protected JPQLGrammar`	`getGrammar()`	Returns the `JPQLGrammar` that defines how the JPQL query was parsed.
`protected <T> T`	`getHelper(String id)`	Returns the registered helper that was cached with the given id.
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<IndexExpression>`	`indexExpressionHelper()`
`protected void`	`initialize()`	Initializes this validator.
`protected boolean`	`isChildOfComparisonExpession(AllOrAnyExpression expression)`
`protected boolean`	`isCollectionExpression(Expression expression)`	Determines whether the given `Expression` is a `CollectionExpression`.
`protected boolean`	`isDateTimeConstant(Expression leftExpression)`	Determines whether the given `Expression` represents one of the three date constants or not.
`protected boolean`	`isInputParameterInValidLocation(InputParameter expression)`
`protected abstract boolean`	`isJoinFetchIdentifiable()`	Determines whether a `JOIN FETCH` expression can be identified by with an identification variable or not.
`protected boolean`	`isJPA1_0()`	Determines whether the JPA version defined by the JPQL grammar is 1.0.
`protected boolean`	`isJPA2_0()`	Determines whether the JPA version defined by the JPQL grammar is 2.0.
`protected boolean`	`isJPA2_1()`	Determines whether the JPA version defined by the JPQL grammar is 2.1.
`protected boolean`	`isMultipleSubquerySelectItemsAllowed(SimpleSelectClause expression)`	Determines whether the given subquery `SELECT` clause can return more than one item or just a single.
`protected boolean`	`isNewerThan(JPAVersion version)`	Determines whether the JPA version for which the JPQL grammar was defined represents a version that is newer than the given version.
`protected boolean`	`isNewerThanOrEqual(JPAVersion version)`	Determines whether the JPA version for which the JPQL grammar was defined represents a version that is newer than the given version or if it's the same version.
`protected boolean`	`isNumericLiteral(String text)`	Determines whether the given sequence of characters is a numeric literal or not.
`protected boolean`	`isOlderThan(JPAVersion version)`	Determines whether the JPA version for which the JPQL grammar was defined represents a version that is older than the given version.
`protected boolean`	`isOlderThanOrEqual(JPAVersion version)`	Determines whether the JPA version for which the JPQL grammar was defined represents a version that is older than the given version or if it's the same version.
`protected boolean`	`isOwnedByConditionalClause(Expression expression)`	Determines whether the given `Expression` is a child of the WHERE or HAVING clause of the top-level query.
`protected boolean`	`isOwnedByFromClause(Expression expression)`	Determines whether the given `Expression` is a child of the FROM clause of the top-level query.
`protected boolean`	`isOwnedBySubFromClause(Expression expression)`	Determines whether the given `Expression` is a child of the FROM clause of a subquery.
`protected abstract boolean`	`isSubqueryAllowedAnywhere()`	Determines whether a subquery can be used in any clause of the top-level query.
`protected boolean`	`isValidJavaIdentifier(String variable)`	Determines whether the given variable is a valid Java identifier, which means it follows the Java specification.
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<KeyExpression>`	`keyExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LengthExpression>`	`lengthExpressionHelper()`
`protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<LocateExpression>`	`locateExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LowerExpression>`	`lowerExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MaxFunction>`	`maxFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MinFunction>`	`minFunctionHelper()`
`protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<ModExpression>`	`modExpressionHelper()`
`protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<NullIfExpression>`	`nullIfExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ObjectExpression>`	`objectExpressionHelper()`
`protected int`	`position(Expression expression, int... extras)`
`protected void`	`registerHelper(String id, Object helper)`	Registers the given helper.
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SizeExpression>`	`sizeExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SqrtExpression>`	`sqrtExpressionHelper()`
`protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<SubstringExpression>`	`substringExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SumFunction>`	`sumFunctionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TrimExpression>`	`trimExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TypeExpression>`	`typeExpressionHelper()`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<UpperExpression>`	`upperExpressionHelper()`
`protected void`	`validateAbstractConditionalClause(AbstractConditionalClause expression, String missingConditionalExpressionMessageKey, String invalidConditionalExpressionMessageKey)`
`protected <T extends AbstractDoubleEncapsulatedExpression> void`	`validateAbstractDoubleEncapsulatedExpression(T expression, AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<T> helper)`	Validates the content of an `AbstractDoubleEncapsulatedExpression`, which encapsulates two expressions separated by a comma.
`protected void`	`validateAbstractFromClause(AbstractFromClause expression)`
`protected void`	`validateAbstractSelectClause(AbstractSelectClause expression, boolean multipleSelectItemsAllowed)`	Validates the select expression of the given `SELECT` clause.
`protected void`	`validateAbstractSelectStatement(AbstractSelectStatement expression)`
`protected <T extends AbstractSingleEncapsulatedExpression> void`	`validateAbstractSingleEncapsulatedExpression(T expression, AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<T> helper)`
`protected <T extends AbstractTripleEncapsulatedExpression> void`	`validateAbstractTripleEncapsulatedExpression(T expression, AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<T> helper)`
`protected <T extends AggregateFunction> void`	`validateAggregateFunctionLocation(T expression, AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<T> helper)`
`protected void`	`validateArithmeticExpression(ArithmeticExpression expression)`
`protected void`	`validateCollectionSeparatedByComma(Expression expression, String endsWithCommaProblemKey, String missingCommaProblemKey)`	Validates the given `Expression` by making sure each child is separated by a comma.
`protected void`	`validateCollectionSeparatedBySpace(Expression expression, String endsWithCommaProblemKey, String hasCommaProblemKey)`	Validates the given `Expression` by making sure each child is separated by a whitespace.
`protected void`	`validateCompoundExpression(CompoundExpression expression, String identifier, String missingLeftExpression, String invalidLeftExpression, String missingRightExpression, String invalidRightExpression, String leftExpressionQueryBNF, String rightExpressionQueryBNF)`
`protected void`	`validateIdentificationVariableDeclaration(IdentificationVariableDeclaration expression)`
`protected void`	`validateIdentifier(Expression expression, String variableName, int variableLength, String reservedWordProblemKey, String invalidJavaIdentifierProblemKey)`	Validates the given variable name to make sure: It is not a JPQL reserved identifier; It is a valid Java identifier.
`protected void`	`validateInputParameters(JPQLExpression expression)`
`protected void`	`validateJoins(IdentificationVariableDeclaration expression)`
`protected void`	`validateLikeExpressionEscapeCharacter(LikeExpression expression)`
`protected void`	`validateLogicalExpression(LogicalExpression expression, String leftExpressionQueryBNF, String rightExpressionQueryBNF)`
`protected void`	`validateOwningClause(InputParameter expression, String parameter)`
`protected void`	`validatePathExpression(AbstractPathExpression expression)`
`protected void`	`validateSimpleSelectStatement(SimpleSelectStatement expression)`
`protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ValueExpression>`	`valueExpressionHelper()`
`void`	`visit(AbsExpression expression)`	Visits the `AbsExpression` expression.
`void`	`visit(AbstractSchemaName expression)`	Visits the `AbstractSchemaName` expression.
`void`	`visit(AdditionExpression expression)`	Visits the `AdditionExpression` expression.
`void`	`visit(AllOrAnyExpression expression)`	Visits the `AllOrAnyExpression` expression.
`void`	`visit(AndExpression expression)`	Visits the `AndExpression` expression.
`void`	`visit(ArithmeticFactor expression)`	Visits the `ArithmeticFactor` expression.
`void`	`visit(AvgFunction expression)`	Visits the `AvgFunction` expression.
`void`	`visit(BadExpression expression)`	Visits the `BadExpression` expression.
`void`	`visit(BetweenExpression expression)`	Visits the `BetweenExpression` expression.
`void`	`visit(CaseExpression expression)`	Visits the `CaseExpression` expression.
`void`	`visit(CoalesceExpression expression)`	Visits the `CoalesceExpression` expression.
`void`	`visit(CollectionExpression expression)`	Visits the `CollectionExpression` expression.
`void`	`visit(CollectionMemberDeclaration expression)`	Visits the `CollectionMemberDeclaration` expression.
`void`	`visit(CollectionMemberExpression expression)`	Visits the `CollectionMemberExpression` expression.
`void`	`visit(CollectionValuedPathExpression expression)`	Visits the `CollectionValuedPathExpression` expression.
`void`	`visit(ComparisonExpression expression)`	Visits the `ComparisonExpression` expression.
`void`	`visit(ConcatExpression expression)`	Visits the `ConcatExpression` expression.
`void`	`visit(ConstructorExpression expression)`	Visits the `ConstructorExpression` expression.
`void`	`visit(CountFunction expression)`	Visits the `CountFunction` expression.
`void`	`visit(DateTime expression)`	Visits the `DateTime` expression.
`void`	`visit(DeleteClause expression)`	Visits the `DeleteClause` expression.
`void`	`visit(DeleteStatement expression)`	Visits the `DeleteStatement` expression.
`void`	`visit(DivisionExpression expression)`	Visits the `DivisionExpression` expression.
`void`	`visit(EmptyCollectionComparisonExpression expression)`	Visits the `EmptyCollectionComparisonExpression` expression.
`void`	`visit(EntityTypeLiteral expression)`	Visits the `EntityTypeLiteral` expression.
`void`	`visit(EntryExpression expression)`	Visits the `EntryExpression` expression.
`void`	`visit(ExistsExpression expression)`	Visits the `ExistsExpression` expression.
`void`	`visit(FromClause expression)`	Visits the `FromClause` expression.
`void`	`visit(FunctionExpression expression)`	Visits the `FunctionExpression` expression.
`void`	`visit(GroupByClause expression)`	Visits the `GroupByClause` expression.
`void`	`visit(HavingClause expression)`	Visits the `HavingClause` expression.
`void`	`visit(IdentificationVariable expression)`	Visits the `IdentificationVariable` expression.
`void`	`visit(IdentificationVariableDeclaration expression)`	Visits the `IdentificationVariableDeclaration` expression.
`void`	`visit(IndexExpression expression)`	Visits the `IndexExpression` expression.
`void`	`visit(InExpression expression)`	Visits the `InExpression` expression.
`void`	`visit(InputParameter expression)`	Visits the `InputParameter` expression.
`void`	`visit(Join expression)`	Visits the `Join` expression.
`void`	`visit(JPQLExpression expression)`	Visits the `JPQLExpression` expression.
`void`	`visit(KeyExpression expression)`	Visits the `KeyExpression` expression.
`void`	`visit(KeywordExpression expression)`	Visits the `KeywordExpression` expression.
`void`	`visit(LengthExpression expression)`	Visits the `LengthExpression` expression.
`void`	`visit(LikeExpression expression)`	Visits the `LikeExpression` expression.
`void`	`visit(LocateExpression expression)`	Visits the `LocateExpression` expression.
`void`	`visit(LowerExpression expression)`	Visits the `LowerExpression` expression.
`void`	`visit(MaxFunction expression)`	Visits the `MaxFunction` expression.
`void`	`visit(MinFunction expression)`	Visits the `MinFunction` expression.
`void`	`visit(ModExpression expression)`	Visits the `ModExpression` expression.
`void`	`visit(MultiplicationExpression expression)`	Visits the `MultiplicationExpression` expression.
`void`	`visit(NotExpression expression)`	Visits the `NotExpression` expression.
`void`	`visit(NullComparisonExpression expression)`	Visits the `NullComparisonExpression` expression.
`void`	`visit(NullExpression expression)`	Visits the `NullExpression` expression.
`void`	`visit(NullIfExpression expression)`	Visits the `NullIfExpression` expression.
`void`	`visit(NumericLiteral expression)`	Visits the `NumericLiteral` expression.
`void`	`visit(ObjectExpression expression)`	Visits the `ObjectExpression` expression.
`void`	`visit(OnClause expression)`	Visits the `OnClause` expression.
`void`	`visit(OrderByClause expression)`	Visits the `OrderByClause` expression.
`void`	`visit(OrderByItem expression)`	Visits the `OrderByItem` expression.
`void`	`visit(OrExpression expression)`	Visits the `OrExpression` expression.
`void`	`visit(RangeVariableDeclaration expression)`	Visits the `RangeVariableDeclaration` expression.
`void`	`visit(ResultVariable expression)`	Visits the `ResultVariable` expression.
`void`	`visit(SelectClause expression)`	Visits the `SelectClause` expression.
`void`	`visit(SelectStatement expression)`	Visits the `SelectStatement` expression.
`void`	`visit(SimpleFromClause expression)`	Visits the `SimpleFromClause` expression.
`void`	`visit(SimpleSelectClause expression)`	Visits the `SimpleSelectClause` expression.
`void`	`visit(SimpleSelectStatement expression)`	Visits the `SimpleSelectStatement` expression.
`void`	`visit(SizeExpression expression)`	Visits the `SizeExpression` expression.
`void`	`visit(SqrtExpression expression)`	Visits the `SqrtExpression` expression.
`void`	`visit(StateFieldPathExpression expression)`	Visits the `StateFieldPathExpression` expression.
`void`	`visit(StringLiteral expression)`	Visits the `StringLiteral` expression.
`void`	`visit(SubExpression expression)`	Visits the `SubExpression` expression.
`void`	`visit(SubstringExpression expression)`	Visits the `SubstringExpression` expression.
`void`	`visit(SubtractionExpression expression)`	Visits the `SubtractionExpression` expression.
`void`	`visit(SumFunction expression)`	Visits the `SumFunction` expression.
`void`	`visit(TreatExpression expression)`	Visits the `TreatExpression` expression.
`void`	`visit(TrimExpression expression)`	Visits the `TrimExpression` expression.
`void`	`visit(TypeExpression expression)`	Visits the `TypeExpression` expression.
`void`	`visit(UnknownExpression expression)`	Visits the `UnknownExpression` expression.
`void`	`visit(UpdateClause expression)`	Visits the `UpdateClause` expression.
`void`	`visit(UpdateItem expression)`	Visits the `UpdateItem` expression.
`void`	`visit(UpdateStatement expression)`	Visits the `UpdateStatement` expression.
`void`	`visit(UpperExpression expression)`	Visits the `UpperExpression` expression.
`void`	`visit(ValueExpression expression)`	Visits the `ValueExpression` expression.
`void`	`visit(WhenClause expression)`	Visits the `WhenClause` expression.
`void`	`visit(WhereClause expression)`	Visits the `WhereClause` expression.

Methods inherited from class org.eclipse.persistence.jpa.jpql.AbstractValidator
addProblem, addProblem, addProblem, addProblem, buildChildrenCollector, buildLiteralVisitor, buildNestedArrayVisitor, buildOwningClauseVisitor, buildOwningStatementVisitor, buildProblem, buildSubqueryVisitor, getBypassChildCollectionExpressionVisitor, getBypassParentSubExpressionVisitor, getChildren, getChildrenCollectorVisitor, getExpressionRegistry, getExpressionValidator, getJPAVersion, getJPQLQueryBNFValidator, getJPQLQueryBNFValidator, getLiteralVisitor, getNestedArrayVisitor, getOwningClauseVisitor, getOwningStatementVisitor, getProvider, getProviderVersion, getQueryBNF, getSubqueryVisitor, isNestedArray, isSubquery, isValid, isValid, isValid, isValidWithChildCollectionBypass, isWithinSubquery, isWithinTopLevelQuery, length, literal, nestedArraySize, position, problemsSize, setProblems, visit

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor
visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractGrammarValidator
```
protected AbstractGrammarValidator(JPQLGrammar jpqlGrammar)
```
    Creates a new AbstractGrammarValidator.
    
    Parameters:
    
    jpqlGrammar - The JPQLGrammar that defines how the JPQL query was parsed, which cannot be null
    
    Throws:
    
    NullPointerException - If the given JPQLGrammar is null
- Method Detail
  - absExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AbsExpression> absExpressionHelper()
```
  - allOrAnyExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AllOrAnyExpression> allOrAnyExpressionHelper()
```
  - avgFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AvgFunction> avgFunctionHelper()
```
  - buildAbsExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AbsExpression> buildAbsExpressionHelper()
```
  - buildAllOrAnyExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AllOrAnyExpression> buildAllOrAnyExpressionHelper()
```
  - buildAvgFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<AvgFunction> buildAvgFunctionHelper()
```
  - buildCoalesceExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CoalesceExpression> buildCoalesceExpressionHelper()
```
  - buildCollectionExpressionVisitor
```
protected AbstractGrammarValidator.CollectionExpressionVisitor buildCollectionExpressionVisitor()
```
    Creates a visitor that collects the CollectionExpression if it's been visited.
    
    Returns:
    
    A new AbstractGrammarValidator.CollectionExpressionVisitor
  - buildConcatExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ConcatExpression> buildConcatExpressionHelper()
```
  - buildCountFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CountFunction> buildCountFunctionHelper()
```
  - buildDateTimeVisitor
```
protected AbstractGrammarValidator.DateTimeVisitor buildDateTimeVisitor()
```
  - buildEntryExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<EntryExpression> buildEntryExpressionHelper()
```
  - buildExistsExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ExistsExpression> buildExistsExpressionHelper()
```
  - buildFunctionExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<FunctionExpression> buildFunctionExpressionHelper()
```
  - buildIndexExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<IndexExpression> buildIndexExpressionHelper()
```
  - buildKeyExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<KeyExpression> buildKeyExpressionHelper()
```
  - buildLengthExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LengthExpression> buildLengthExpressionHelper()
```
  - buildLocateExpressionHelper
```
protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<LocateExpression> buildLocateExpressionHelper()
```
  - buildLowerExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LowerExpression> buildLowerExpressionHelper()
```
  - buildMaxFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MaxFunction> buildMaxFunctionHelper()
```
  - buildMinFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MinFunction> buildMinFunctionHelper()
```
  - buildModExpressionHelper
```
protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<ModExpression> buildModExpressionHelper()
```
  - buildNullExpressionVisitor
```
protected AbstractGrammarValidator.NullExpressionVisitor buildNullExpressionVisitor()
```
    Creates a visitor that collects the NullExpression if it's been visited.
    
    Returns:
    
    A new AbstractGrammarValidator.NullExpressionVisitor
  - buildNullIfExpressionHelper
```
protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<NullIfExpression> buildNullIfExpressionHelper()
```
  - buildObjectExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ObjectExpression> buildObjectExpressionHelper()
```
  - buildSizeExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SizeExpression> buildSizeExpressionHelper()
```
  - buildSqrtExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SqrtExpression> buildSqrtExpressionHelper()
```
  - buildSubstringExpressionHelper
```
protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<SubstringExpression> buildSubstringExpressionHelper()
```
  - buildSumFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SumFunction> buildSumFunctionHelper()
```
  - buildTrimExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TrimExpression> buildTrimExpressionHelper()
```
  - buildTypeExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TypeExpression> buildTypeExpressionHelper()
```
  - buildUpperExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<UpperExpression> buildUpperExpressionHelper()
```
  - buildValueExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ValueExpression> buildValueExpressionHelper()
```
  - coalesceExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CoalesceExpression> coalesceExpressionHelper()
```
  - collectionSeparatedByCommaValidator
```
protected AbstractGrammarValidator.CollectionSeparatedByCommaValidator collectionSeparatedByCommaValidator()
```
  - collectionSeparatedBySpaceValidator
```
protected AbstractGrammarValidator.CollectionSeparatedBySpaceValidator collectionSeparatedBySpaceValidator()
```
  - comparisonExpressionVisitor
```
protected AbstractGrammarValidator.ComparisonExpressionVisitor comparisonExpressionVisitor()
```
  - concatExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ConcatExpression> concatExpressionHelper()
```
  - countFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<CountFunction> countFunctionHelper()
```
  - dispose
```
public void dispose()
```
    Description copied from class: AbstractValidator
    
    Disposes this visitor.
    
    Overrides:
    
    dispose in class AbstractValidator
  - entryExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<EntryExpression> entryExpressionHelper()
```
  - existsExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ExistsExpression> existsExpressionHelper()
```
  - functionExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<FunctionExpression> functionExpressionHelper()
```
  - getCollectionExpression
```
protected CollectionExpression getCollectionExpression(Expression expression)
```
    Casts the given Expression to a CollectionExpression if it is actually an object of that type.
    
    Parameters:
    
    expression - The Expression to cast
    
    Returns:
    
    The given Expression if it is a CollectionExpression or null if it is any other object
  - getCollectionExpressionVisitor
```
protected AbstractGrammarValidator.CollectionExpressionVisitor getCollectionExpressionVisitor()
```
    Returns the visitor that collects the CollectionExpression if it's been visited.
    
    Returns:
    
    The AbstractGrammarValidator.CollectionExpressionVisitor
    
    See Also:
    
    buildCollectionExpressionVisitor()
  - getDateTimeVisitor
```
protected AbstractGrammarValidator.DateTimeVisitor getDateTimeVisitor()
```
  - getGrammar
```
protected JPQLGrammar getGrammar()
```
    Description copied from class: AbstractValidator
    
    Returns the JPQLGrammar that defines how the JPQL query was parsed.
    
    Specified by:
    
    getGrammar in class AbstractValidator
    
    Returns:
    
    The JPQLGrammar that was used to parse the JPQL query
  - getHelper
```
protected <T> T getHelper(String id)
```
    Returns the registered helper that was cached with the given id.
    
    Type Parameters:
    
    T - This is the type parameter
    
    Parameters:
    
    id - The key used to retrieve the cached helper, if one was cached
    
    Returns:
    
    Either the cached helper or null if no helper was previously cached for the given id
  - indexExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<IndexExpression> indexExpressionHelper()
```
  - initialize
```
protected void initialize()
```
    Description copied from class: AbstractValidator
    
    Initializes this validator.
    
    Overrides:
    
    initialize in class AbstractValidator
  - isChildOfComparisonExpession
```
protected boolean isChildOfComparisonExpession(AllOrAnyExpression expression)
```
  - isCollectionExpression
```
protected boolean isCollectionExpression(Expression expression)
```
    Determines whether the given Expression is a CollectionExpression.
    
    Parameters:
    
    expression - The Expression to verify
    
    Returns:
    
    true if the given given Expression is a CollectionExpression; false otherwise
  - isDateTimeConstant
```
protected boolean isDateTimeConstant(Expression leftExpression)
```
    Determines whether the given Expression represents one of the three date constants or not.
    
    Parameters:
    
    leftExpression - The Expression to visit
    
    Returns:
    
    true if the given Expression represents one of the tree date constants; false otherwise
  - isInputParameterInValidLocation
```
protected boolean isInputParameterInValidLocation(InputParameter expression)
```
  - isJoinFetchIdentifiable
```
protected abstract boolean isJoinFetchIdentifiable()
```
    Determines whether a JOIN FETCH expression can be identified by with an identification variable or not.
    
    Returns:
    
    true if the expression can have an identification variable; false otherwise
  - isJPA1_0
```
protected boolean isJPA1_0()
```
    Determines whether the JPA version defined by the JPQL grammar is 1.0.
    
    Returns:
    
    true if the JPQL grammar was defined for JPA 1.0; false if it was defined for a more recent version
  - isJPA2_0
```
protected boolean isJPA2_0()
```
    Determines whether the JPA version defined by the JPQL grammar is 2.0.
    
    Returns:
    
    true if the JPQL grammar was defined for JPA 2.0; false if it was defined for a more recent version
  - isJPA2_1
```
protected boolean isJPA2_1()
```
    Determines whether the JPA version defined by the JPQL grammar is 2.1.
    
    Returns:
    
    true if the JPQL grammar was defined for JPA 2.1; false if it was defined for a more recent version
  - isMultipleSubquerySelectItemsAllowed
```
protected boolean isMultipleSubquerySelectItemsAllowed(SimpleSelectClause expression)
```
    Determines whether the given subquery SELECT clause can return more than one item or just a single. By default, only one item can be returned.
    
    Parameters:
    
    expression - The subquery SELECT clause
    
    Returns:
    
    true if it can return more than one item; false if it needs to return only one item
  - isNewerThan
```
protected final boolean isNewerThan(JPAVersion version)
```
    Determines whether the JPA version for which the JPQL grammar was defined represents a version that is newer than the given version.
    
    Parameters:
    
    version - The constant to verify if it's representing a version that is older than this one
    
    Returns:
    
    true if this constant represents a newer version and the given constant represents a version that is older; false if the given constant represents a newer and this constant represents an older version
  - isNewerThanOrEqual
```
protected final boolean isNewerThanOrEqual(JPAVersion version)
```
    Determines whether the JPA version for which the JPQL grammar was defined represents a version that is newer than the given version or if it's the same version.
    
    Parameters:
    
    version - The constant to verify if it's representing a version that is older than this one or if it's the same than this one
    
    Returns:
    
    true if this constant represents a newer version and the given constant represents a version that is older or if it's the same constant; false if the given constant represents a newer and this constant represents an older version
  - isNumericLiteral
```
protected boolean isNumericLiteral(String text)
```
    Determines whether the given sequence of characters is a numeric literal or not. There are two types of numeric literal that is supported:
    
    Decimal literal
    
    Hexadecimal literal
    Parameters:
    
    text - The sequence of characters to validate
    
    Returns:
    
    true if the given sequence of characters is a valid numeric literal; false otherwise
  - isOlderThan
```
protected final boolean isOlderThan(JPAVersion version)
```
    Determines whether the JPA version for which the JPQL grammar was defined represents a version that is older than the given version.
    
    Parameters:
    
    version - The constant to verify if it's representing a version that is more recent than this one
    
    Returns:
    
    true if this constant represents an earlier version and the given constant represents a version that is more recent; false if the given constant represents an earlier version and this constant represents a more recent version
  - isOlderThanOrEqual
```
protected final boolean isOlderThanOrEqual(JPAVersion version)
```
    Determines whether the JPA version for which the JPQL grammar was defined represents a version that is older than the given version or if it's the same version.
    
    Parameters:
    
    version - The constant to verify if it's representing a version that is more recent than this one or if it's the same than this one
    
    Returns:
    
    true if this constant represents an earlier version and the given constant represents a version that is more recent or if it's the same constant; false if the given constant represents an earlier version and this constant represents a more recent version
  - isOwnedByConditionalClause
```
protected boolean isOwnedByConditionalClause(Expression expression)
```
    Determines whether the given Expression is a child of the WHERE or HAVING clause of the top-level query.
    
    Parameters:
    
    expression - The Expression to visit its parent hierarchy up to the clause
    
    Returns:
    
    true if the first parent being a clause is the WHERE or HAVING clause; false otherwise
  - isOwnedByFromClause
```
protected boolean isOwnedByFromClause(Expression expression)
```
    Determines whether the given Expression is a child of the FROM clause of the top-level query.
    
    Parameters:
    
    expression - The Expression to visit its parent hierarchy up to the clause
    
    Returns:
    
    true if the first parent being a clause is the top-level FROM clause; false otherwise
  - isOwnedBySubFromClause
```
protected boolean isOwnedBySubFromClause(Expression expression)
```
    Determines whether the given Expression is a child of the FROM clause of a subquery.
    
    Parameters:
    
    expression - The Expression to visit its parent hierarchy up to the clause
    
    Returns:
    
    true if the first parent being a clause is the FROM clause of a subquery; false otherwise
  - isSubqueryAllowedAnywhere
```
protected abstract boolean isSubqueryAllowedAnywhere()
```
    Determines whether a subquery can be used in any clause of the top-level query.
    
    Returns:
    
    true if a subquery can be defined in any clause; false if it can only be used within the WHERE and HAVING defined by the JPA 1.0 and 2.0 specification document
  - isValidJavaIdentifier
```
protected boolean isValidJavaIdentifier(String variable)
```
    Determines whether the given variable is a valid Java identifier, which means it follows the Java specification. The first letter has to be a Java identifier start and the others have to be Java identifier parts.
    
    Parameters:
    
    variable - The variable to validate
    
    Returns:
    
    true if the given variable follows the Java identifier specification; false otherwise
  - keyExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<KeyExpression> keyExpressionHelper()
```
  - lengthExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LengthExpression> lengthExpressionHelper()
```
  - locateExpressionHelper
```
protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<LocateExpression> locateExpressionHelper()
```
  - lowerExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<LowerExpression> lowerExpressionHelper()
```
  - maxFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MaxFunction> maxFunctionHelper()
```
  - minFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<MinFunction> minFunctionHelper()
```
  - modExpressionHelper
```
protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<ModExpression> modExpressionHelper()
```
  - nullIfExpressionHelper
```
protected AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<NullIfExpression> nullIfExpressionHelper()
```
  - objectExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ObjectExpression> objectExpressionHelper()
```
  - position
```
protected int position(Expression expression,
                       int... extras)
```
  - registerHelper
```
protected void registerHelper(String id,
                              Object helper)
```
    Registers the given helper.
    
    Parameters:
    
    id - The key used to cache the given helper
    
    helper - The helper to cache for future use
  - sizeExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SizeExpression> sizeExpressionHelper()
```
  - sqrtExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SqrtExpression> sqrtExpressionHelper()
```
  - substringExpressionHelper
```
protected AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<SubstringExpression> substringExpressionHelper()
```
  - sumFunctionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<SumFunction> sumFunctionHelper()
```
  - trimExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TrimExpression> trimExpressionHelper()
```
  - typeExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<TypeExpression> typeExpressionHelper()
```
  - upperExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<UpperExpression> upperExpressionHelper()
```
  - validateAbstractConditionalClause
```
protected void validateAbstractConditionalClause(AbstractConditionalClause expression,
                                                 String missingConditionalExpressionMessageKey,
                                                 String invalidConditionalExpressionMessageKey)
```
  - validateAbstractDoubleEncapsulatedExpression
```
protected <T extends AbstractDoubleEncapsulatedExpression> void validateAbstractDoubleEncapsulatedExpression(T expression,
                                                                                                             AbstractGrammarValidator.AbstractDoubleEncapsulatedExpressionHelper<T> helper)
```
    Validates the content of an AbstractDoubleEncapsulatedExpression, which encapsulates two expressions separated by a comma.
    
    Type Parameters:
    
    T - This is the type parameter
    
    Parameters:
    
    expression - The AbstractDoubleEncapsulatedExpression to validate
    
    helper - This helper is used to retrieve specific information related to the expression being validated
  - validateAbstractFromClause
```
protected void validateAbstractFromClause(AbstractFromClause expression)
```
  - validateAbstractSelectClause
```
protected void validateAbstractSelectClause(AbstractSelectClause expression,
                                            boolean multipleSelectItemsAllowed)
```
    Validates the select expression of the given SELECT clause. The select expression will only be visited if its JPQL query BNF is part of the select item BNF.
    
    Parameters:
    
    expression - The AbstractSelectClause to validate
    
    multipleSelectItemsAllowed - Determines whether the SELECT can have one or more select expression or not
  - validateAbstractSelectStatement
```
protected void validateAbstractSelectStatement(AbstractSelectStatement expression)
```
  - validateAbstractSingleEncapsulatedExpression
```
protected <T extends AbstractSingleEncapsulatedExpression> void validateAbstractSingleEncapsulatedExpression(T expression,
                                                                                                             AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<T> helper)
```
  - validateAbstractTripleEncapsulatedExpression
```
protected <T extends AbstractTripleEncapsulatedExpression> void validateAbstractTripleEncapsulatedExpression(T expression,
                                                                                                             AbstractGrammarValidator.AbstractTripleEncapsulatedExpressionHelper<T> helper)
```
  - validateAggregateFunctionLocation
```
protected <T extends AggregateFunction> void validateAggregateFunctionLocation(T expression,
                                                                               AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<T> helper)
```
  - validateArithmeticExpression
```
protected void validateArithmeticExpression(ArithmeticExpression expression)
```
  - validateCollectionSeparatedByComma
```
protected void validateCollectionSeparatedByComma(Expression expression,
                                                  String endsWithCommaProblemKey,
                                                  String missingCommaProblemKey)
```
    Validates the given Expression by making sure each child is separated by a comma.
    
    Parameters:
    
    expression - The Expression to validate its children, which should be a series of Expression separated by a comma
    
    endsWithCommaProblemKey - The problem key describing the CollectionExpression is ending with a comma
    
    missingCommaProblemKey - The problem key describing the CollectionExpression has two items not separated by a comma
  - validateCollectionSeparatedBySpace
```
protected void validateCollectionSeparatedBySpace(Expression expression,
                                                  String endsWithCommaProblemKey,
                                                  String hasCommaProblemKey)
```
    Validates the given Expression by making sure each child is separated by a whitespace.
    
    Parameters:
    
    expression - The Expression to validate its children, which should be a series of Expression separated by a whitespace
    
    endsWithCommaProblemKey - The problem key describing the CollectionExpression is ending with a comma
    
    hasCommaProblemKey - The problem key describing the CollectionExpression has two items separated by a comma
  - validateCompoundExpression
```
protected void validateCompoundExpression(CompoundExpression expression,
                                          String identifier,
                                          String missingLeftExpression,
                                          String invalidLeftExpression,
                                          String missingRightExpression,
                                          String invalidRightExpression,
                                          String leftExpressionQueryBNF,
                                          String rightExpressionQueryBNF)
```
  - validateIdentificationVariableDeclaration
```
protected void validateIdentificationVariableDeclaration(IdentificationVariableDeclaration expression)
```
  - validateIdentifier
```
protected void validateIdentifier(Expression expression,
                                  String variableName,
                                  int variableLength,
                                  String reservedWordProblemKey,
                                  String invalidJavaIdentifierProblemKey)
```
    Validates the given variable name to make sure:
    
    It is not a JPQL reserved identifier;
    
    It is a valid Java identifier.
    Parameters:
    
    expression - The expression to validate
    
    variableName - The text to actually validate
    
    variableLength - The actual length of the text, which can be longer than the text that is validated
    
    reservedWordProblemKey - The problem key used when the variable name is a reserved JPQL identifier
    
    invalidJavaIdentifierProblemKey - The problem key used when the variable name is not a valid Java identifier
  - validateInputParameters
```
protected void validateInputParameters(JPQLExpression expression)
```
  - validateJoins
```
protected void validateJoins(IdentificationVariableDeclaration expression)
```
  - validateLikeExpressionEscapeCharacter
```
protected void validateLikeExpressionEscapeCharacter(LikeExpression expression)
```
  - validateLogicalExpression
```
protected void validateLogicalExpression(LogicalExpression expression,
                                         String leftExpressionQueryBNF,
                                         String rightExpressionQueryBNF)
```
  - validateOwningClause
```
protected void validateOwningClause(InputParameter expression,
                                    String parameter)
```
  - validatePathExpression
```
protected void validatePathExpression(AbstractPathExpression expression)
```
  - validateSimpleSelectStatement
```
protected void validateSimpleSelectStatement(SimpleSelectStatement expression)
```
  - valueExpressionHelper
```
protected AbstractGrammarValidator.AbstractSingleEncapsulatedExpressionHelper<ValueExpression> valueExpressionHelper()
```
  - visit
```
public void visit(AbsExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AbsExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AbstractSchemaName expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AbstractSchemaName expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AdditionExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AdditionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AllOrAnyExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AllOrAnyExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AndExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AndExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ArithmeticFactor expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ArithmeticFactor expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(AvgFunction expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the AvgFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(BadExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the BadExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(BetweenExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the BetweenExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CaseExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CaseExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CoalesceExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CoalesceExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CollectionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionMemberDeclaration expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CollectionMemberDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionMemberExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CollectionMemberExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CollectionValuedPathExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CollectionValuedPathExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ComparisonExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ConcatExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ConcatExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ConstructorExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ConstructorExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(CountFunction expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the CountFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DateTime expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the DateTime expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DeleteClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the DeleteClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DeleteStatement expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the DeleteStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(DivisionExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the DivisionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EmptyCollectionComparisonExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the EmptyCollectionComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EntityTypeLiteral expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the EntityTypeLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(EntryExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the EntryExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ExistsExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ExistsExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(FromClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the FromClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(FunctionExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the FunctionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(GroupByClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the GroupByClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(HavingClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the HavingClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariable expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the IdentificationVariable expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IdentificationVariableDeclaration expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the IdentificationVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(IndexExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the IndexExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(InExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the InExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(InputParameter expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the InputParameter expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(Join expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the Join expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(JPQLExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the JPQLExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(KeyExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the KeyExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(KeywordExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the KeywordExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LengthExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the LengthExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LikeExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the LikeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LocateExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the LocateExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(LowerExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the LowerExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MaxFunction expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the MaxFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MinFunction expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the MinFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ModExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ModExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(MultiplicationExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the MultiplicationExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NotExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the NotExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullComparisonExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the NullComparisonExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the NullExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NullIfExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the NullIfExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(NumericLiteral expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the NumericLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ObjectExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ObjectExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OnClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the OnClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrderByClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the OrderByClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrderByItem expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the OrderByItem expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(OrExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the OrExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(RangeVariableDeclaration expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the RangeVariableDeclaration expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(ResultVariable expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ResultVariable expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SelectClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SelectClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SelectStatement expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleFromClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SimpleFromClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleSelectClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SimpleSelectClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SimpleSelectStatement expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SimpleSelectStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SizeExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SizeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SqrtExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SqrtExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(StateFieldPathExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the StateFieldPathExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(StringLiteral expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the StringLiteral expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SubExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubstringExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SubstringExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SubtractionExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SubtractionExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(SumFunction expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the SumFunction expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TreatExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the TreatExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TrimExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the TrimExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(TypeExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the TypeExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The Expression to visit
  - visit
```
public void visit(UnknownExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the UnknownExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UnknownExpression to visit
  - visit
```
public void visit(UpdateClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the UpdateClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateClause to visit
  - visit
```
public void visit(UpdateItem expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the UpdateItem expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateItem to visit
  - visit
```
public void visit(UpdateStatement expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the UpdateStatement expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpdateStatement to visit
  - visit
```
public void visit(UpperExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the UpperExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The UpperExpression to visit
  - visit
```
public void visit(ValueExpression expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the ValueExpression expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The ValueExpression to visit
  - visit
```
public void visit(WhenClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the WhenClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The WhenClause to visit
  - visit
```
public void visit(WhereClause expression)
```
    Description copied from interface: ExpressionVisitor
    
    Visits the WhereClause expression.
    
    Specified by:
    
    visit in interface ExpressionVisitor
    
    Overrides:
    
    visit in class AnonymousExpressionVisitor
    
    Parameters:
    
    expression - The WhereClause to visit

Class AbstractGrammarValidator

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.persistence.jpa.jpql.AbstractValidator

Constructor Summary

Method Summary

Methods inherited from class org.eclipse.persistence.jpa.jpql.AbstractValidator

Methods inherited from class org.eclipse.persistence.jpa.jpql.parser.AnonymousExpressionVisitor

Methods inherited from class java.lang.Object

Constructor Detail

AbstractGrammarValidator

Method Detail

absExpressionHelper

allOrAnyExpressionHelper

avgFunctionHelper

buildAbsExpressionHelper

buildAllOrAnyExpressionHelper

buildAvgFunctionHelper

buildCoalesceExpressionHelper

buildCollectionExpressionVisitor

buildConcatExpressionHelper

buildCountFunctionHelper

buildDateTimeVisitor

buildEntryExpressionHelper

buildExistsExpressionHelper

buildFunctionExpressionHelper

buildIndexExpressionHelper

buildKeyExpressionHelper

buildLengthExpressionHelper

buildLocateExpressionHelper

buildLowerExpressionHelper

buildMaxFunctionHelper

buildMinFunctionHelper

buildModExpressionHelper

buildNullExpressionVisitor

buildNullIfExpressionHelper

buildObjectExpressionHelper

buildSizeExpressionHelper

buildSqrtExpressionHelper

buildSubstringExpressionHelper

buildSumFunctionHelper

buildTrimExpressionHelper

buildTypeExpressionHelper

buildUpperExpressionHelper

buildValueExpressionHelper

coalesceExpressionHelper

collectionSeparatedByCommaValidator

collectionSeparatedBySpaceValidator

comparisonExpressionVisitor

concatExpressionHelper

countFunctionHelper

dispose

entryExpressionHelper

existsExpressionHelper

functionExpressionHelper

getCollectionExpression

getCollectionExpressionVisitor

getDateTimeVisitor

getGrammar

getHelper

indexExpressionHelper

initialize

isChildOfComparisonExpession

isCollectionExpression

isDateTimeConstant

isInputParameterInValidLocation

isJoinFetchIdentifiable

isJPA1_0

isJPA2_0

isJPA2_1

isMultipleSubquerySelectItemsAllowed

isNewerThan

isNewerThanOrEqual

isNumericLiteral

isOlderThan

isOlderThanOrEqual

isOwnedByConditionalClause

isOwnedByFromClause

isOwnedBySubFromClause

isSubqueryAllowedAnywhere

isValidJavaIdentifier