com.h3c.util.dao

Class VersionedUpdateStrategy<P extends Storable<?> & Versioned,T extends Transportable<? super T,?> & Versionable>

java.lang.Object

com.h3c.util.dao.VersionedUpdateStrategy<P,T>

Type Parameters:

P - type of the persistent object.

T - type of the transport object.

All Implemented Interfaces:

UpdateStrategy<P,T>

public class VersionedUpdateStrategy<P extends Storable<?> & Versioned,T extends Transportable<? super T,?> & Versionable>
extends Object
implements UpdateStrategy<P,T>

When a transport object is updated on the database its version is checked; if the persistent object and transport object versions are not the same the operation will fail.

Constructor Summary

Constructors

Constructor and Description
VersionedUpdateStrategy()

Method Summary

Methods

Modifier and Type	Method and Description
void	validateConversion(P source, T target) This method is called when a persistent object is converted to a transport object.
void	validateUpdate(P target, T source) Validates an update.

Methods inherited from class java.lang.Object

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

Constructor Detail

VersionedUpdateStrategy

public VersionedUpdateStrategy()

Method Detail

validateUpdate

public void validateUpdate(P target,
                  T source)

Description copied from interface: UpdateStrategy

Validates an update. This method will be called when the persistent object is updated using the data from the transport object.

Specified by:

validateUpdate in interface UpdateStrategy<P extends Storable<?> & Versioned,T extends Transportable<? super T,?> & Versionable>

Parameters:

target - object to update.

source - object to take the data from.

validateConversion

public void validateConversion(P source,
                      T target)

Description copied from interface: UpdateStrategy

This method is called when a persistent object is converted to a transport object.

Specified by:

validateConversion in interface UpdateStrategy<P extends Storable<?> & Versioned,T extends Transportable<? super T,?> & Versionable>

Parameters:

source - object to take the data from.

target - object to update.