UpdateTimestampsCache (Hibernate API Documentation) - Hibernate 3.2.4 正式版 API 英文文档

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org.hibernate.cache
Class UpdateTimestampsCache

java.lang.Object
  org.hibernate.cache.UpdateTimestampsCache

public class UpdateTimestampsCache
extends Object

Tracks the timestamps of the most recent updates to particular tables. It is important that the cache timeout of the underlying cache implementation be set to a higher value than the timeouts of any of the query caches. In fact, we recommend that the the underlying cache not be configured for expiry at all. Note, in particular, that an LRU cache expiry policy is never appropriate.

Author:: Gavin King, Mikheil Kapanadze

Field Summary

static String REGION_NAME


Constructor Summary

UpdateTimestampsCache(Settings settings, Properties props)


Method Summary

void clear()


void destroy()


Cache getCache()


String getRegionName()


void invalidate(Serializable[] spaces)


boolean isUpToDate(Set spaces, Long timestamp)


void preinvalidate(Serializable[] spaces)


String toString()


Methods inherited from class java.lang.Object

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

Field Detail

REGION_NAME

public static final String REGION_NAME

Constructor Detail

UpdateTimestampsCache

public UpdateTimestampsCache(Settings settings,
                             Properties props)
                      throws HibernateException

Method Detail

clear

public void clear()
           throws CacheException

Throws:: CacheException

preinvalidate

public void preinvalidate(Serializable[] spaces)
                   throws CacheException

Throws:: CacheException

invalidate

public void invalidate(Serializable[] spaces)
                throws CacheException

Throws:: CacheException

isUpToDate

public boolean isUpToDate(Set spaces,
                          Long timestamp)
                   throws HibernateException

Throws:: HibernateException

destroy

public void destroy()

getCache

public Cache getCache()

getRegionName

public String getRegionName()

toString

public String toString()