org.hibernate.cache.jbc2.util
Class DataVersionAdapter

java.lang.Object
  org.hibernate.cache.jbc2.util.DataVersionAdapter

All Implemented Interfaces:

Serializable, org.jboss.cache.optimistic.DataVersion

public class DataVersionAdapter
extends Object
implements org.jboss.cache.optimistic.DataVersion

A DataVersionAdapter.

Version:

$Revision: 1 $

Author:

Brian Stansberry

See Also:

Serialized Form

Constructor Summary

DataVersionAdapter(Object currentVersion, Object previousVersion, Comparator versionComparator, String sourceIdentifer)

Method Summary

boolean	newerThan(org.jboss.cache.optimistic.DataVersion dataVersion) newerThan() call is dispatched against the DataVersion currently associated with the node; the passed dataVersion param is the DataVersion associated with the data we are trying to put into the node.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DataVersionAdapter

public DataVersionAdapter(Object currentVersion,
                          Object previousVersion,
                          Comparator versionComparator,
                          String sourceIdentifer)

Method Detail

newerThan

public boolean newerThan(org.jboss.cache.optimistic.DataVersion dataVersion)

newerThan() call is dispatched against the DataVersion currently associated with the node; the passed dataVersion param is the DataVersion associated with the data we are trying to put into the node.

we are expected to return true in the case where we (the current node DataVersion) are newer that then incoming value. Returning true here essentially means that a optimistic lock failure has occured (because conversely, the value we are trying to put into the node is "older than" the value already there...)

Specified by:

newerThan in interface org.jboss.cache.optimistic.DataVersion

toString

public String toString()

Overrides:

toString in class Object