org.eclipse.persistence.internal.indirection

Class BackupValueHolder

java.lang.Object

org.eclipse.persistence.indirection.ValueHolder

org.eclipse.persistence.internal.indirection.BackupValueHolder

All Implemented Interfaces:

Serializable, Cloneable, ValueHolderInterface, WeavedAttributeValueHolderInterface

public class BackupValueHolder
extends ValueHolder

Used as the backup value holder in the unit of work for transparent indirection. This ensure that a reference to the original value holder is held in case the transparent collection or proxy is replace without first instantiating the original.

Since:

10.1.3

Author:

James Sutherland

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.eclipse.persistence.indirection.ValueHolderInterface

shouldToStringInstantiate

Constructor Summary

Constructors

Constructor and Description
BackupValueHolder(ValueHolderInterface unitOfWorkValueHolder)

Method Summary

Modifier and Type	Method and Description
ValueHolderInterface	getUnitOfWorkValueHolder() Return the original uow clone's value holder.
Object	getValue() If the original value holder was not instantiated, then first instantiate it to obtain the backup value.

Methods inherited from class org.eclipse.persistence.indirection.ValueHolder

clone, isCoordinatedWithProperty, isInstantiated, isNewlyWeavedValueHolder, setIsCoordinatedWithProperty, setIsNewlyWeavedValueHolder, setValue, shouldAllowInstantiationDeferral, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BackupValueHolder

public BackupValueHolder(ValueHolderInterface unitOfWorkValueHolder)

Method Detail

getValue

public Object getValue()

If the original value holder was not instantiated, then first instantiate it to obtain the backup value.

Specified by:

getValue in interface ValueHolderInterface

Overrides:

getValue in class ValueHolder

getUnitOfWorkValueHolder

public ValueHolderInterface getUnitOfWorkValueHolder()

Return the original uow clone's value holder.