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:

java.io.Serializable, java.lang.Cloneable, InternalExpression, InternalSelection

Direct Known Subclasses:

CollectionJoinImpl, ListJoinImpl, MapJoinImpl, SetJoinImpl

public class JoinImpl<Z,X>
extends FromImpl<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 and Description
protected JoinType	joinType
protected <any>	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 and Description
JoinImpl(<any> parentPath, ManagedType managedType, Metamodel metamodel, java.lang.Class<X> javaClass, org.eclipse.persistence.expressions.Expression expressionNode, <any> modelArtifact)
JoinImpl(<any> parentPath, ManagedType managedType, Metamodel metamodel, java.lang.Class<X> javaClass, org.eclipse.persistence.expressions.Expression expressionNode, <any> modelArtifact, JoinType joinType)
JoinImpl(<any> parentPath, ManagedType managedType, Metamodel metamodel, java.lang.Class<X> javaClass, org.eclipse.persistence.expressions.Expression expressionNode, <any> modelArtifact, JoinType joinType, FromImpl correlatedParent)

Method Summary

Modifier and Type	Method and Description
protected <T> <any>	buildExpressionForAs(java.lang.Class<T> type)
<any>	getAttribute() Return the metamodel Attribute corresponding to the join.
JoinType	getJoinType() Return the join type.
Predicate	getOn()
<any>	getParent() Return the parent of the join.
JoinImpl<Z,X>	on(<any> restriction)
JoinImpl<Z,X>	on(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

Methods inherited from class java.lang.Object

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

Field Detail

joinType

protected JoinType joinType

on

protected <any> on

Constructor Detail

JoinImpl

public JoinImpl(<any> parentPath,
                ManagedType managedType,
                Metamodel metamodel,
                java.lang.Class<X> javaClass,
                org.eclipse.persistence.expressions.Expression expressionNode,
                <any> modelArtifact)

JoinImpl

public JoinImpl(<any> parentPath,
                ManagedType managedType,
                Metamodel metamodel,
                java.lang.Class<X> javaClass,
                org.eclipse.persistence.expressions.Expression expressionNode,
                <any> modelArtifact,
                JoinType joinType)

JoinImpl

public JoinImpl(<any> parentPath,
                ManagedType managedType,
                Metamodel metamodel,
                java.lang.Class<X> javaClass,
                org.eclipse.persistence.expressions.Expression expressionNode,
                <any> modelArtifact,
                JoinType joinType,
                FromImpl correlatedParent)

Method Detail

getAttribute

public <any> getAttribute()

Return the metamodel Attribute corresponding to the join.

Returns:

metamodel Attribute type for the join

getParent

public <any> getParent()

Return the parent of the join.

Returns:

join parent

getJoinType

public JoinType getJoinType()

Return the join type.

Returns:

join type

buildExpressionForAs

protected <T> <any> buildExpressionForAs(java.lang.Class<T> type)

Overrides:

buildExpressionForAs in class ExpressionImpl<X>

getOn

public Predicate getOn()

on

public JoinImpl<Z,X> on(<any> restriction)

on

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