org.datanucleus.jpa.criteria
Class JoinImpl<Z,X>

java.lang.Object
  extended by org.datanucleus.jpa.criteria.ExpressionImpl<X>
      extended by org.datanucleus.jpa.criteria.PathImpl<Z,X>
          extended by org.datanucleus.jpa.criteria.FromImpl<Z,X>
              extended by org.datanucleus.jpa.criteria.JoinImpl<Z,X>
Type Parameters:
Z - type from which joining
X - type of the attribute being joined
All Implemented Interfaces:
javax.persistence.criteria.Expression<X>, javax.persistence.criteria.FetchParent<Z,X>, javax.persistence.criteria.From<Z,X>, javax.persistence.criteria.Join<Z,X>, javax.persistence.criteria.Path<X>, javax.persistence.criteria.Selection<X>, javax.persistence.TupleElement<X>
Direct Known Subclasses:
PluralJoinImpl

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

Implementation of JPA2 Criteria "Join".


Field Summary
 
Fields inherited from class org.datanucleus.jpa.criteria.FromImpl
fetchJoins, joins, type
 
Fields inherited from class org.datanucleus.jpa.criteria.PathImpl
attribute, parent
 
Constructor Summary
JoinImpl(FromImpl<?,Z> parent, PluralAttributeImpl<? super Z,java.util.Collection<X>,X> attr, javax.persistence.criteria.JoinType joinType)
          Constructor for a join to a collection (1-N, M-N relations).
JoinImpl(FromImpl<?,Z> parent, SingularAttributeImpl<Z,X> attr, javax.persistence.criteria.JoinType joinType)
          Constructor for a join to an entity (1-1, N-1 relations).
 
Method Summary
 javax.persistence.metamodel.Attribute<? super Z,?> getAttribute()
           
 javax.persistence.criteria.JoinType getJoinType()
           
 javax.persistence.criteria.From<?,Z> getParent()
           
 
Methods inherited from class org.datanucleus.jpa.criteria.FromImpl
fetch, fetch, fetch, fetch, fetch, fetch, getAttributeForAttributeName, getCorrelationParent, getFetches, getJoins, getQueryExpression, getQueryExpression, isCorrelated, join, join, join, join, join, join, join, join, join, join, join, join, joinCollection, joinCollection, joinList, joinList, joinMap, joinMap, joinSet, joinSet, toString, toString
 
Methods inherited from class org.datanucleus.jpa.criteria.PathImpl
get, get, get, get, getModel, getParentPath, getType, type
 
Methods inherited from class org.datanucleus.jpa.criteria.ExpressionImpl
alias, as, getAlias, getCompoundSelectionItems, getJavaType, in, in, in, in, isCompoundSelection, isNotNull, isNull
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 
Methods inherited from interface javax.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 javax.persistence.criteria.Path
get, get, get, get, getModel, getParentPath, type
 
Methods inherited from interface javax.persistence.criteria.Expression
as, in, in, in, in, isNotNull, isNull
 
Methods inherited from interface javax.persistence.criteria.Selection
alias, getCompoundSelectionItems, isCompoundSelection
 
Methods inherited from interface javax.persistence.TupleElement
getAlias, getJavaType
 
Methods inherited from interface javax.persistence.criteria.FetchParent
fetch, fetch, fetch, fetch, fetch, fetch, getFetches
 

Constructor Detail

JoinImpl

public JoinImpl(FromImpl<?,Z> parent,
                SingularAttributeImpl<Z,X> attr,
                javax.persistence.criteria.JoinType joinType)
Constructor for a join to an entity (1-1, N-1 relations).

Parameters:
parent - Parent object
attr - The type joining to
joinType - Type of join (Inner/LeftOuter/RightOuter)

JoinImpl

public JoinImpl(FromImpl<?,Z> parent,
                PluralAttributeImpl<? super Z,java.util.Collection<X>,X> attr,
                javax.persistence.criteria.JoinType joinType)
Constructor for a join to a collection (1-N, M-N relations).

Parameters:
parent - Parent object
attr - The type joining to
joinType - Type of join (Inner/LeftOuter/RightOuter)
Method Detail

getAttribute

public javax.persistence.metamodel.Attribute<? super Z,?> getAttribute()
Specified by:
getAttribute in interface javax.persistence.criteria.Join<Z,X>

getJoinType

public javax.persistence.criteria.JoinType getJoinType()
Specified by:
getJoinType in interface javax.persistence.criteria.Join<Z,X>

getParent

public javax.persistence.criteria.From<?,Z> getParent()
Specified by:
getParent in interface javax.persistence.criteria.Join<Z,X>


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