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OptimisticTreeCache.DataVersionAdapter (Hibernate API Documentation) - Hibernate 3.2.3 正式版 API 英文文档

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org.hibernate.cache
Class OptimisticTreeCache.DataVersionAdapter

java.lang.Object
  org.hibernate.cache.OptimisticTreeCache.DataVersionAdapter

All Implemented Interfaces:

org.jboss.cache.optimistic.DataVersion, Serializable

Enclosing class:

OptimisticTreeCache

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public static class OptimisticTreeCache.DataVersionAdapter

extends Object

implements org.jboss.cache.optimistic.DataVersion

See Also:

Serialized Form

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Constructor Summary

OptimisticTreeCache.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

OptimisticTreeCache.DataVersionAdapter

public OptimisticTreeCache.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

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toString

public String toString()

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