Package org.eclipse.persistence.internal.jpa.querydef

Class JoinImpl<Z,X>

java.lang.Object

org.eclipse.persistence.internal.jpa.querydef.SelectionImpl<X>

org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl<X>

org.eclipse.persistence.internal.jpa.querydef.PathImpl<X>

org.eclipse.persistence.internal.jpa.querydef.FromImpl<Z,X>

org.eclipse.persistence.internal.jpa.querydef.JoinImpl<Z,X>

All Implemented Interfaces:

jakarta.persistence.criteria.Expression<X>, jakarta.persistence.criteria.Fetch<Z,X>, jakarta.persistence.criteria.FetchParent<Z,X>, jakarta.persistence.criteria.From<Z,X>, jakarta.persistence.criteria.Join<Z,X>, jakarta.persistence.criteria.Path<X>, jakarta.persistence.criteria.Selection<X>, jakarta.persistence.TupleElement<X>, Serializable, Cloneable, InternalExpression, InternalSelection

Direct Known Subclasses:

CollectionJoinImpl, ListJoinImpl, MapJoinImpl, SetJoinImpl

public class JoinImpl<Z,X>
extends FromImpl<Z,X>
implements jakarta.persistence.criteria.Join<Z,X>, jakarta.persistence.criteria.Fetch<Z,X>

Purpose: Contains the implementation of the Join interface of the JPA criteria API.

Description: This class represents a join of an attribute from a "From"element.

Since:

EclipseLink 1.2

Author:

gyorke

See Also:

Join, Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected jakarta.persistence.criteria.JoinType	joinType
protected jakarta.persistence.criteria.Expression<Boolean>	on

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.FromImpl

correlatedParent, fetches, isFetch, isJoin, joins, managedType

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.PathImpl

modelArtifact, pathParent

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl

isLiteral, literal, metamodel

Fields inherited from class org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

alias, currentNode, javaType

Constructor Summary

Constructors

Constructor	Description
JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath, jakarta.persistence.metamodel.ManagedType managedType, jakarta.persistence.metamodel.Metamodel metamodel, Class<X> javaClass, Expression expressionNode, jakarta.persistence.metamodel.Bindable<T> modelArtifact)
JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath, jakarta.persistence.metamodel.ManagedType managedType, jakarta.persistence.metamodel.Metamodel metamodel, Class<X> javaClass, Expression expressionNode, jakarta.persistence.metamodel.Bindable<T> modelArtifact, jakarta.persistence.criteria.JoinType joinType)
JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath, jakarta.persistence.metamodel.ManagedType managedType, jakarta.persistence.metamodel.Metamodel metamodel, Class<X> javaClass, Expression expressionNode, jakarta.persistence.metamodel.Bindable<T> modelArtifact, jakarta.persistence.criteria.JoinType joinType, FromImpl correlatedParent)

Method Summary

Modifier and Type	Method	Description
protected <T> jakarta.persistence.criteria.Expression<T>	buildExpressionForAs(Class<T> type)
jakarta.persistence.metamodel.Attribute<? super Z,?>	getAttribute()	Return the metamodel Attribute corresponding to the join.
jakarta.persistence.criteria.JoinType	getJoinType()	Return the join type.
jakarta.persistence.criteria.Predicate	getOn()
jakarta.persistence.criteria.From<?,Z>	getParent()	Return the parent of the join.
JoinImpl<Z,X>	on(jakarta.persistence.criteria.Expression<Boolean> restriction)
JoinImpl<Z,X>	on(jakarta.persistence.criteria.Predicate... restrictions)

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.FromImpl

fetch, fetch, fetch, fetch, fetch, fetch, findJoinFetches, findJoins, get, get, get, get, getCorrelationParent, getFetches, getJoins, isCorrelated, isFrom, join, join, join, join, join, join, join, join, join, join, join, join, joinCollection, joinCollection, joinList, joinList, joinMap, joinMap, joinSet, joinSet, type

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.PathImpl

clone, findRootAndParameters, getModel, getParentPath

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.ExpressionImpl

as, in, in, in, in, isCompoundExpression, isExpression, isJunction, isLiteral, isNotNull, isNull, isParameter, isPredicate, isSubquery

Methods inherited from class org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

alias, getAlias, getCompoundSelectionItems, getCurrentNode, getJavaType, isCompoundSelection, isConstructor, isRoot, setJavaType

Methods inherited from class java.lang.Object

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

Methods inherited from interface jakarta.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface jakarta.persistence.criteria.FetchParent

fetch, fetch, fetch, fetch, fetch, fetch, getFetches

Methods inherited from interface jakarta.persistence.criteria.From

getCorrelationParent, getJoins, isCorrelated, join, join, join, join, join, join, join, join, join, join, join, join, joinCollection, joinCollection, joinList, joinList, joinMap, joinMap, joinSet, joinSet

Methods inherited from interface jakarta.persistence.criteria.Path

get, get, get, get, getModel, getParentPath, type

Methods inherited from interface jakarta.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface jakarta.persistence.TupleElement

getAlias, getJavaType

Field Detail

joinType

protected jakarta.persistence.criteria.JoinType joinType

on

protected jakarta.persistence.criteria.Expression<Boolean> on

Constructor Detail

JoinImpl

public JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath,
                jakarta.persistence.metamodel.ManagedType managedType,
                jakarta.persistence.metamodel.Metamodel metamodel,
                Class<X> javaClass,
                Expression expressionNode,
                jakarta.persistence.metamodel.Bindable<T> modelArtifact)

JoinImpl

public JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath,
                jakarta.persistence.metamodel.ManagedType managedType,
                jakarta.persistence.metamodel.Metamodel metamodel,
                Class<X> javaClass,
                Expression expressionNode,
                jakarta.persistence.metamodel.Bindable<T> modelArtifact,
                jakarta.persistence.criteria.JoinType joinType)

JoinImpl

public JoinImpl(jakarta.persistence.criteria.Path<Z> parentPath,
                jakarta.persistence.metamodel.ManagedType managedType,
                jakarta.persistence.metamodel.Metamodel metamodel,
                Class<X> javaClass,
                Expression expressionNode,
                jakarta.persistence.metamodel.Bindable<T> modelArtifact,
                jakarta.persistence.criteria.JoinType joinType,
                FromImpl correlatedParent)

Method Detail

getAttribute

public jakarta.persistence.metamodel.Attribute<? super Z,?> getAttribute()

Return the metamodel Attribute corresponding to the join.

Specified by:

getAttribute in interface jakarta.persistence.criteria.Fetch<Z,X>

Specified by:

getAttribute in interface jakarta.persistence.criteria.Join<Z,X>

Returns:

metamodel Attribute type for the join

getParent

public jakarta.persistence.criteria.From<?,Z> getParent()

Return the parent of the join.

Specified by:

getParent in interface jakarta.persistence.criteria.Fetch<Z,X>

Specified by:

getParent in interface jakarta.persistence.criteria.Join<Z,X>

Returns:

join parent

getJoinType

public jakarta.persistence.criteria.JoinType getJoinType()

Return the join type.

Specified by:

getJoinType in interface jakarta.persistence.criteria.Fetch<Z,X>

Specified by:

getJoinType in interface jakarta.persistence.criteria.Join<Z,X>

Returns:

join type

buildExpressionForAs

protected <T> jakarta.persistence.criteria.Expression<T> buildExpressionForAs(Class<T> type)

Overrides:

buildExpressionForAs in class ExpressionImpl<X>

getOn

public jakarta.persistence.criteria.Predicate getOn()

Specified by:

getOn in interface jakarta.persistence.criteria.Join<Z,X>

on

public JoinImpl<Z,X> on(jakarta.persistence.criteria.Expression<Boolean> restriction)

Specified by:

on in interface jakarta.persistence.criteria.Join<Z,X>

on

public JoinImpl<Z,X> on(jakarta.persistence.criteria.Predicate... restrictions)

Specified by:

on in interface jakarta.persistence.criteria.Join<Z,X>