程序包 org.hibernate.hql.internal.ast.tree

类 QueryNode

java.lang.Object

antlr.BaseAST

antlr.CommonAST

org.hibernate.hql.internal.ast.tree.Node

org.hibernate.hql.internal.ast.tree.SqlNode

org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode

org.hibernate.hql.internal.ast.tree.AbstractStatement

org.hibernate.hql.internal.ast.tree.AbstractRestrictableStatement

org.hibernate.hql.internal.ast.tree.QueryNode

所有已实现的接口:

antlr.collections.AST, Serializable, DisplayableNode, InitializeableNode, RestrictableStatement, SelectExpression, Statement

public class QueryNode
extends AbstractRestrictableStatement
implements SelectExpression

Defines a top-level AST node representing an HQL select statement.

作者:

Joshua Davis

另请参阅:

序列化表格

字段概要

从类继承的字段 antlr.BaseAST

down, right

构造器概要

构造器

构造器	说明
QueryNode()

方法概要

修饰符和类型	方法	说明
String	getAlias()
Type	getDataType()	Returns the data type of the select expression.
FromElement	getFromElement()	Returns the FROM element that this expression refers to.
protected CoreMessageLogger	getLog()
OrderByClause	getOrderByClause()
int	getScalarColumnIndex()	Gets index of the select expression in the projection list.
SelectClause	getSelectClause()	Locate the select clause that is part of this select statement.
int	getStatementType()	Return the main token type representing the type of this statement.
protected int	getWhereClauseParentTokenType()
boolean	hasOrderByClause()
boolean	isConstructor()	Returns true if the element is a constructor (e.g. new Foo).
boolean	isReturnableEntity()	Returns true if this select expression represents an entity that can be returned.
boolean	isScalar()
boolean	needsExecutor()	Does this statement require the StatementExecutor?
void	setAlias(String alias)
void	setScalarColumn(int i)	Sets the index and text for select expression in the projection list.
void	setScalarColumnText(int i)	Appends AST nodes that represent the columns after the current AST node.

从类继承的方法 org.hibernate.hql.internal.ast.tree.AbstractRestrictableStatement

getFromClause, getWhereClause, hasWhereClause, locateWhereClause

从类继承的方法 org.hibernate.hql.internal.ast.tree.AbstractStatement

getDisplayText

从类继承的方法 org.hibernate.hql.internal.ast.tree.HqlSqlWalkerNode

getAliasGenerator, getASTFactory, getSessionFactoryHelper, getWalker, initialize

从类继承的方法 org.hibernate.hql.internal.ast.tree.SqlNode

getOriginalText, setDataType, setText

从类继承的方法 org.hibernate.hql.internal.ast.tree.Node

getColumn, getFilename, getLine, getRenderText, getTextLength, initialize, initialize

从类继承的方法 antlr.CommonAST

getText, getType, initialize, setType

从类继承的方法 antlr.BaseAST

addChild, decode, encode, equals, equalsList, equalsListPartial, equalsTree, equalsTreePartial, findAll, findAllPartial, getFirstChild, getNextSibling, getNumberOfChildren, getTokenNames, removeChildren, setFirstChild, setNextSibling, setVerboseStringConversion, toString, toStringList, toStringTree, xmlSerialize, xmlSerializeNode, xmlSerializeRootClose, xmlSerializeRootOpen

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.hibernate.hql.internal.ast.tree.SelectExpression

setText

从接口继承的方法 org.hibernate.hql.internal.ast.tree.Statement

getWalker

构造器详细资料

QueryNode

public QueryNode()

方法详细资料

getStatementType

public int getStatementType()

从接口复制的说明: Statement

Return the main token type representing the type of this statement.

指定者:

getStatementType 在接口中 Statement

返回:

The corresponding token type.

needsExecutor

public boolean needsExecutor()

从接口复制的说明: Statement

Does this statement require the StatementExecutor?

Essentially, at the JDBC level, does this require an executeUpdate()?

指定者:

needsExecutor 在接口中 Statement

返回:

True if this statement should be handed off to the StatementExecutor to be executed; false otherwise.

getWhereClauseParentTokenType

protected int getWhereClauseParentTokenType()

指定者:

getWhereClauseParentTokenType 在类中 AbstractRestrictableStatement

getLog

protected CoreMessageLogger getLog()

指定者:

getLog 在类中 AbstractRestrictableStatement

getSelectClause

public final SelectClause getSelectClause()

Locate the select clause that is part of this select statement.

Note, that this might return null as derived select clauses (i.e., no select clause at the HQL-level) get generated much later than when we get created; thus it depends upon lifecycle.

返回:

Our select clause, or null.

hasOrderByClause

public final boolean hasOrderByClause()

getOrderByClause

public final OrderByClause getOrderByClause()

getAlias

public String getAlias()

指定者:

getAlias 在接口中 SelectExpression

getFromElement

public FromElement getFromElement()

从接口复制的说明: SelectExpression

Returns the FROM element that this expression refers to.

指定者:

getFromElement 在接口中 SelectExpression

返回:

The FROM element.

isConstructor

public boolean isConstructor()

从接口复制的说明: SelectExpression

Returns true if the element is a constructor (e.g. new Foo).

指定者:

isConstructor 在接口中 SelectExpression

返回:

true if the element is a constructor (e.g. new Foo).

isReturnableEntity

public boolean isReturnableEntity()
                           throws antlr.SemanticException

从接口复制的说明: SelectExpression

Returns true if this select expression represents an entity that can be returned.

指定者:

isReturnableEntity 在接口中 SelectExpression

返回:

true if this select expression represents an entity that can be returned.

抛出:

antlr.SemanticException - if a semantic error occurs

isScalar

public boolean isScalar()
                 throws antlr.SemanticException

指定者:

isScalar 在接口中 SelectExpression

抛出:

antlr.SemanticException

setAlias

public void setAlias(String alias)

指定者:

setAlias 在接口中 SelectExpression

setScalarColumn

public void setScalarColumn(int i)
                     throws antlr.SemanticException

从接口复制的说明: SelectExpression

Sets the index and text for select expression in the projection list.

指定者:

setScalarColumn 在接口中 SelectExpression

参数:

i - The index of the select expression in the projection list.

抛出:

antlr.SemanticException - if a semantic error occurs

getScalarColumnIndex

public int getScalarColumnIndex()

从接口复制的说明: SelectExpression

Gets index of the select expression in the projection list.

指定者:

getScalarColumnIndex 在接口中 SelectExpression

返回:

The index of the select expression in the projection list.

setScalarColumnText

public void setScalarColumnText(int i)
                         throws antlr.SemanticException

从接口复制的说明: SelectExpression

Appends AST nodes that represent the columns after the current AST node. (e.g. 'as col0_O_')

指定者:

setScalarColumnText 在接口中 SelectExpression

参数:

i - The index of the select expression in the projection list.

抛出:

antlr.SemanticException - if a semantic error occurs

getDataType

public Type getDataType()

从接口复制的说明: SelectExpression

Returns the data type of the select expression.

指定者:

getDataType 在接口中 SelectExpression

覆盖:

getDataType 在类中 SqlNode

返回:

The data type of the select expression.