Module org.eclipse.persistence.jpa

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

Class MapJoinImpl<Z,K,V>

java.lang.Object

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

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

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

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

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

org.eclipse.persistence.internal.jpa.querydef.MapJoinImpl<Z,K,V>

All Implemented Interfaces:

Expression<V>, Fetch<Z,V>, FetchParent<Z,V>, From<Z,V>, Join<Z,V>, MapJoin<Z,K,V>, Path<V>, PluralJoin<Z,Map<K,V>,V>, Selection<V>, TupleElement<V>, Serializable, Cloneable, InternalExpression, InternalSelection

Direct Known Subclasses:

BasicMapJoinImpl

public class MapJoinImpl<Z,K,V>
extends JoinImpl<Z,V>
implements MapJoin<Z,K,V>

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

See Also:

• MapJoin
• Serialized Form

Field Summary

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

joinType, 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
MapJoinImpl(Path<Z> parentPath, ManagedType managedType, Metamodel metamodel, Class<V> javaClass, Expression expressionNode, Bindable<T> modelArtifact)
MapJoinImpl(Path<Z> parentPath, ManagedType managedType, Metamodel metamodel, Class<V> javaClass, Expression expressionNode, Bindable<T> modelArtifact, JoinType joinType)
MapJoinImpl(Path<Z> parentPath, ManagedType managedType, Metamodel metamodel, Class<V> javaClass, Expression expressionNode, Bindable<T> modelArtifact, JoinType joinType, FromImpl correlatedParent)

Method Summary

Modifier and Type	Method	Description
Expression<Map.Entry<K,V>>	entry()
MapAttribute<? super Z,K,V>	getModel()	Return the metamodel representation for the collection.
Join<Map<K,V>,K>	joinKey()
Join<Map<K,V>,K>	joinKey(JoinType jt)
Path<K>	key()
MapJoinImpl<Z,K,V>	on(Expression<Boolean> restriction)
MapJoinImpl<Z,K,V>	on(Predicate... restrictions)
Path<V>	value()

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

buildExpressionForAs, getAttribute, getJoinType, getOn, getParent

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, 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.Join

getAttribute, getJoinType, getOn, getParent

Methods inherited from interface jakarta.persistence.criteria.Path

get, get, get, get, getParentPath, type

Methods inherited from interface jakarta.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface jakarta.persistence.TupleElement

getAlias, getJavaType

Constructor Details

MapJoinImpl

public MapJoinImpl(Path<Z> parentPath,
 ManagedType managedType,
 Metamodel metamodel,
 Class<V> javaClass,
 Expression expressionNode,
 Bindable<T> modelArtifact)

MapJoinImpl

public MapJoinImpl(Path<Z> parentPath,
 ManagedType managedType,
 Metamodel metamodel,
 Class<V> javaClass,
 Expression expressionNode,
 Bindable<T> modelArtifact,
 JoinType joinType)

MapJoinImpl

public MapJoinImpl(Path<Z> parentPath,
 ManagedType managedType,
 Metamodel metamodel,
 Class<V> javaClass,
 Expression expressionNode,
 Bindable<T> modelArtifact,
 JoinType joinType,
 FromImpl correlatedParent)

Method Details

getModel

public MapAttribute<? super Z,K,V> getModel()

Return the metamodel representation for the collection.

Specified by:

getModel in interface MapJoin<Z,K,V>

Specified by:

getModel in interface Path<Z>

Specified by:

getModel in interface PluralJoin<Z,K,V>

Overrides:

getModel in class PathImpl<V>

Returns:

metamodel type representing the Collection that is the target of the join

entry

public Expression<Map.Entry<K,V>> entry()

Specified by:

entry in interface MapJoin<Z,K,V>

joinKey

public Join<Map<K,V>,K> joinKey()

joinKey

public Join<Map<K,V>,K> joinKey(JoinType jt)

key

public Path<K> key()

Specified by:

key in interface MapJoin<Z,K,V>

value

public Path<V> value()

Specified by:

value in interface MapJoin<Z,K,V>

on

public MapJoinImpl<Z,K,V> on(Expression<Boolean> restriction)

Specified by:

on in interface Join<Z,K>

Specified by:

on in interface MapJoin<Z,K,V>

Overrides:

on in class JoinImpl<Z,V>

on

public MapJoinImpl<Z,K,V> on(Predicate... restrictions)

Specified by:

on in interface Join<Z,K>

Specified by:

on in interface MapJoin<Z,K,V>

Overrides:

on in class JoinImpl<Z,V>