org.eclipse.persistence.internal.jpa.querydef

Class PathImpl<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>

All Implemented Interfaces:

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

Direct Known Subclasses:

FromImpl

public class PathImpl<X>
extends ExpressionImpl<X>
implements java.lang.Cloneable

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

Description: This class represents an abstract path which is a model of the expression through joins.

Since:

EclipseLink 1.2

Author:

gyorke

See Also:

Path, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected java.lang.Object	modelArtifact
protected <any>	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
PathImpl(<any> parent, Metamodel metamodel, java.lang.Class<X> javaClass, org.eclipse.persistence.expressions.Expression expressionNode, Bindable modelArtifact)

Method Summary

Modifier and Type	Method and Description
protected java.lang.Object	clone()
void	findRootAndParameters(CommonAbstractCriteriaImpl query)
<E,C extends java.util.Collection<E>> <any>	get(<any> collection) Return the path corresponding to the referenced collection-valued attribute.
<K,V,M extends java.util.Map<K,V>> <any>	get(<any> map) Return the path corresponding to the referenced map-valued attribute.
<Y> <any>	get(<any> att) Return the path corresponding to the referenced non-collection valued attribute.
<Y> <any>	get(java.lang.String attName)
<any>	getModel() Return the bindable object that corresponds to the path expression.
<any>	getParentPath() Return the parent "node" in the path.
<any>	type() Return an expression corresponding to the type of the path.

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

as, buildExpressionForAs, 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, isFrom, isRoot

Methods inherited from class java.lang.Object

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

Field Detail

pathParent

protected <any> pathParent

modelArtifact

protected java.lang.Object modelArtifact

Constructor Detail

PathImpl

public PathImpl(<any> parent,
                Metamodel metamodel,
                java.lang.Class<X> javaClass,
                org.eclipse.persistence.expressions.Expression expressionNode,
                Bindable modelArtifact)

Method Detail

getModel

public <any> getModel()

Return the bindable object that corresponds to the path expression.

Returns:

bindable object corresponding to the path

getParentPath

public <any> getParentPath()

Return the parent "node" in the path.

Returns:

parent

get

public <Y> <any> get(<any> att)

Return the path corresponding to the referenced non-collection valued attribute.

Parameters:

att - attribute

Returns:

path corresponding to the referenced attribute

get

public <E,C extends java.util.Collection<E>> <any> get(<any> collection)

Return the path corresponding to the referenced collection-valued attribute.

Parameters:

collection - collection-valued attribute

Returns:

expression corresponding to the referenced attribute

get

public <K,V,M extends java.util.Map<K,V>> <any> get(<any> map)

Return the path corresponding to the referenced map-valued attribute.

Parameters:

map - map-valued attribute

Returns:

expression corresponding to the referenced attribute

type

public <any> type()

Return an expression corresponding to the type of the path.

Returns:

expression corresponding to the type of the path

get

public <Y> <any> get(java.lang.String attName)

findRootAndParameters

public void findRootAndParameters(CommonAbstractCriteriaImpl query)

Specified by:

findRootAndParameters in interface InternalSelection

Overrides:

findRootAndParameters in class ExpressionImpl<X>

clone

protected java.lang.Object clone()

Overrides:

clone in class java.lang.Object