Module eclipselink

Package org.eclipse.persistence.descriptors.copying

Class AbstractCopyPolicy

java.lang.Object

org.eclipse.persistence.descriptors.copying.AbstractCopyPolicy

All Implemented Interfaces:

Serializable, Cloneable, CopyPolicy

Direct Known Subclasses:

CloneCopyPolicy, InstantiationCopyPolicy, PersistenceEntityCopyPolicy

public abstract class AbstractCopyPolicy
extends Object
implements CopyPolicy

Purpose: Allows customization of how an object is cloned. This class defines common behavior that allows a subclass to be used and set on a descriptor to provide a special cloning routine for how an object is cloned in a unit of work.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected ClassDescriptor	descriptor

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractCopyPolicy()

Method Summary

Modifier and Type	Method	Description
abstract Object	buildClone(Object domainObject, Session session)	Return a shallow clone of the object for usage with object copying, or unit of work backup cloning.
Object	buildWorkingCopyClone(Object domainObject, Session session)	By default use the buildClone.
Object	buildWorkingCopyCloneFromRow(DataRecord row, ObjectBuildingQuery query, Object primaryKey, UnitOfWork uow)	By default create a new instance.
Object	clone()	INTERNAL: Clones the CopyPolicy
protected ClassDescriptor	getDescriptor()	Return the descriptor.
void	initialize(Session session)	Do nothing by default.
void	setDescriptor(ClassDescriptor descriptor)	Set the descriptor.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.persistence.descriptors.copying.CopyPolicy

buildsNewInstance

Field Detail

descriptor

protected ClassDescriptor descriptor

Constructor Detail

AbstractCopyPolicy

protected AbstractCopyPolicy()

Method Detail

buildClone

public abstract Object buildClone(Object domainObject,
                                  Session session)
                           throws DescriptorException

Description copied from interface: CopyPolicy

Return a shallow clone of the object for usage with object copying, or unit of work backup cloning.

Specified by:

buildClone in interface CopyPolicy

Throws:

DescriptorException

buildWorkingCopyClone

public Object buildWorkingCopyClone(Object domainObject,
                                    Session session)
                             throws DescriptorException

By default use the buildClone.

Specified by:

buildWorkingCopyClone in interface CopyPolicy

Throws:

DescriptorException

buildWorkingCopyCloneFromRow

public Object buildWorkingCopyCloneFromRow(DataRecord row,
                                           ObjectBuildingQuery query,
                                           Object primaryKey,
                                           UnitOfWork uow)
                                    throws DescriptorException

By default create a new instance.

Specified by:

buildWorkingCopyCloneFromRow in interface CopyPolicy

Throws:

DescriptorException

clone

public Object clone()

INTERNAL: Clones the CopyPolicy

Specified by:

clone in interface CopyPolicy

Overrides:

clone in class Object

getDescriptor

protected ClassDescriptor getDescriptor()

Return the descriptor.

initialize

public void initialize(Session session)
                throws DescriptorException

Do nothing by default.

Specified by:

initialize in interface CopyPolicy

Throws:

DescriptorException

setDescriptor

public void setDescriptor(ClassDescriptor descriptor)

Set the descriptor.

Specified by:

setDescriptor in interface CopyPolicy