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

Class CompoundSelectionImpl

java.lang.Object

org.eclipse.persistence.internal.jpa.querydef.SelectionImpl

org.eclipse.persistence.internal.jpa.querydef.CompoundSelectionImpl

All Implemented Interfaces:

java.io.Serializable, javax.persistence.criteria.CompoundSelection, javax.persistence.criteria.Selection, javax.persistence.TupleElement, InternalSelection

Direct Known Subclasses:

ConstructorSelectionImpl

public class CompoundSelectionImpl
extends SelectionImpl
implements javax.persistence.criteria.CompoundSelection

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

Description: The Selection is the expression describing what should be returned by the query.

Since:

EclipseLink 1.2

Author:

gyorke

See Also:

Join, Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.ArrayList<java.lang.String>	duplicateAliasNames
protected java.util.ArrayList<javax.persistence.criteria.Selection<?>>	subSelections

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

alias, currentNode, javaType

Constructor Summary

Constructors

Constructor	Description
CompoundSelectionImpl(java.lang.Class javaType, javax.persistence.criteria.Selection[] subSelections)
CompoundSelectionImpl(java.lang.Class javaType, javax.persistence.criteria.Selection[] subSelections, boolean validate)

Method Summary

Modifier and Type	Method	Description
void	findRootAndParameters(CommonAbstractCriteriaImpl criteriaQuery)
java.util.List<javax.persistence.criteria.Selection<?>>	getCompoundSelectionItems()	Return selection items composing a compound selection
protected java.util.List<java.lang.String>	getDuplicateAliasNames()	Returns the collection used to store any duplicate alias names found within this CompoundSelection Item
boolean	isCompoundSelection()	Whether the selection item is a compound selection

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

alias, getAlias, getCurrentNode, getJavaType, isConstructor, isFrom, isRoot, setJavaType

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.persistence.criteria.Selection

alias

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Field Detail

subSelections

protected java.util.ArrayList<javax.persistence.criteria.Selection<?>> subSelections

duplicateAliasNames

protected java.util.ArrayList<java.lang.String> duplicateAliasNames

Constructor Detail

CompoundSelectionImpl

public CompoundSelectionImpl(java.lang.Class javaType,
                             javax.persistence.criteria.Selection[] subSelections)

CompoundSelectionImpl

public CompoundSelectionImpl(java.lang.Class javaType,
                             javax.persistence.criteria.Selection[] subSelections,
                             boolean validate)

Method Detail

isCompoundSelection

public boolean isCompoundSelection()

Whether the selection item is a compound selection

Specified by:

isCompoundSelection in interface javax.persistence.criteria.Selection

Overrides:

isCompoundSelection in class SelectionImpl

Returns:

boolean

getCompoundSelectionItems

public java.util.List<javax.persistence.criteria.Selection<?>> getCompoundSelectionItems()

Return selection items composing a compound selection

Specified by:

getCompoundSelectionItems in interface javax.persistence.criteria.Selection

Overrides:

getCompoundSelectionItems in class SelectionImpl

Returns:

list of selection items

Throws:

java.lang.IllegalStateException - if selection is not a compound selection

getDuplicateAliasNames

protected java.util.List<java.lang.String> getDuplicateAliasNames()

Returns the collection used to store any duplicate alias names found within this CompoundSelection Item

Returns:

list of alias Strings.

findRootAndParameters

public void findRootAndParameters(CommonAbstractCriteriaImpl criteriaQuery)

Specified by:

findRootAndParameters in interface InternalSelection