com.solarmetric.kodo.runtime.datacache.query
Class QueryKeyExpirationListener

java.lang.Object
  |
  +--com.solarmetric.kodo.runtime.datacache.query.QueryKeyExpirationListener

All Implemented Interfaces:

com.solarmetric.util.Listener

class QueryKeyExpirationListener

extends Object

implements com.solarmetric.util.Listener

Constructor Summary

QueryKeyExpirationListener(QueryCache cache)

Method Summary

void	eventOccurred(EventObject event)
void	registerQueryKey(Object key, QueryKey qk) Registers qk with oid so that notification of expiration of oid can potentially result in the query associated with qk being expired.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryKeyExpirationListener

public QueryKeyExpirationListener(QueryCache cache)

Method Detail

registerQueryKey

public void registerQueryKey(Object key,
                             QueryKey qk)

Registers qk with oid so that notification of expiration of oid can potentially result in the query associated with qk being expired. This is useful because if a substantial number of objects in qk's result list are not in memory, it may actually be more efficient to execute the query against the database, rather than executing one-off queries along the way.

eventOccurred

public void eventOccurred(EventObject event)

Specified by:

eventOccurred in interface com.solarmetric.util.Listener