org.apache.jdo.impl.model.jdo.caching

Class JDOReferenceImplCaching

java.lang.Object

org.apache.jdo.impl.model.jdo.JDOElementImpl

org.apache.jdo.impl.model.jdo.JDORelationshipImpl

org.apache.jdo.impl.model.jdo.JDOReferenceImplDynamic

org.apache.jdo.impl.model.jdo.caching.JDOReferenceImplCaching

All Implemented Interfaces:

JDOElement, JDOReference, JDORelationship

public class JDOReferenceImplCaching
extends JDOReferenceImplDynamic

An instance of this class represents the JDO relationship metadata of a reference relationship field. This caching implementation caches any calulated value to avoid re-calculating it if it is requested again.

Since:

2.0

Version:

2.0

Author:

Michael Bouschen

Field Summary

Fields inherited from class org.apache.jdo.impl.model.jdo.JDORelationshipImpl

inverse, mappedBy

Fields inherited from interface org.apache.jdo.model.jdo.JDORelationship

CARDINALITY_N, CARDINALITY_ONE, CARDINALITY_ZERO

Constructor Summary

Constructors

Constructor and Description
JDOReferenceImplCaching()

Method Summary

Methods

Modifier and Type	Method and Description
JDORelationship	getInverseRelationship() Get the inverse JDORelationship in the case of a two-way relationship.
JDORelationship	getMappedBy() Get the mappedBy relationship.

Methods inherited from class org.apache.jdo.impl.model.jdo.JDOReferenceImplDynamic

getRelatedJavaType, isJDOReference

Methods inherited from class org.apache.jdo.impl.model.jdo.JDORelationshipImpl

getDeclaringField, getInverseRelationshipName, getLowerBound, getRelatedJDOClass, getUpperBound, isJDOArray, isJDOCollection, isJDOMap, isOwner, setDeclaringField, setInverseRelationship, setLowerBound, setMappedBy, setUpperBound

Methods inherited from class org.apache.jdo.impl.model.jdo.JDOElementImpl

addPropertyChangeListener, addVetoableChangeListener, createJDOExtension, firePropertyChange, fireVetoableChange, getJDOExtensions, removeJDOExtension, removePropertyChangeListener, removeVetoableChangeListener

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jdo.model.jdo.JDORelationship

getDeclaringField, getInverseRelationshipName, getLowerBound, getRelatedJDOClass, getUpperBound, isJDOArray, isJDOCollection, isJDOMap, isOwner, setDeclaringField, setInverseRelationship, setLowerBound, setMappedBy, setUpperBound

Methods inherited from interface org.apache.jdo.model.jdo.JDOElement

addPropertyChangeListener, addVetoableChangeListener, createJDOExtension, getJDOExtensions, removeJDOExtension, removePropertyChangeListener, removeVetoableChangeListener

Constructor Detail

JDOReferenceImplCaching

public JDOReferenceImplCaching()

Method Detail

getMappedBy

public JDORelationship getMappedBy()

Get the mappedBy relationship. If there is no mappedBy relationship set, the method checks the mappedBy name as specified in the declaring field and resolves the relationship. The method returns null if there is no mappedBy relationship set and there is no mappedBy name specified on the declaring field.

Specified by:

getMappedBy in interface JDORelationship

Overrides:

getMappedBy in class JDORelationshipImpl

Returns:

the mappedBy relationship if available; null otherwise.

getInverseRelationship

public JDORelationship getInverseRelationship()

Get the inverse JDORelationship in the case of a two-way relationship.

Specified by:

getInverseRelationship in interface JDORelationship

Overrides:

getInverseRelationship in class JDORelationshipImpl

Returns:

the inverse relationship