net.ontopia.persistence.proxy
Class QueryCache

java.lang.Object
  net.ontopia.persistence.proxy.QueryCache

All Implemented Interfaces:

EvictableIF

public class QueryCache
extends java.lang.Object
implements EvictableIF

INTERNAL: A storage access implementation accessing relational databases using JDBC.

Field Summary

protected CacheIF	cache
protected java.util.Map	lru
protected int	lrusize
protected DetachedQueryIF	query

Method Summary

void	clear(boolean notifyCluster)
java.lang.Object	executeQuery(StorageAccessIF access, java.lang.Object cachekey, java.lang.Object[] query_params)
java.lang.Object	remove(java.lang.Object key)
java.lang.Object	remove(java.lang.Object key, boolean notifyCluster)
void	removeAll(java.util.Collection keys)
void	removeAll(java.util.Collection keys, boolean notifyCluster)
void	writeReport(java.io.Writer out, boolean dumpCache)

Methods inherited from class java.lang.Object

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

Field Detail

query

protected DetachedQueryIF query

cache

protected CacheIF cache

lru

protected java.util.Map lru

lrusize

protected int lrusize

Method Detail

executeQuery

public java.lang.Object executeQuery(StorageAccessIF access,
                                     java.lang.Object cachekey,
                                     java.lang.Object[] query_params)

remove

public java.lang.Object remove(java.lang.Object key)

removeAll

public void removeAll(java.util.Collection keys)

remove

public java.lang.Object remove(java.lang.Object key,
                               boolean notifyCluster)

Specified by:

remove in interface EvictableIF

removeAll

public void removeAll(java.util.Collection keys,
                      boolean notifyCluster)

Specified by:

removeAll in interface EvictableIF

clear

public void clear(boolean notifyCluster)

Specified by:

clear in interface EvictableIF

writeReport

public void writeReport(java.io.Writer out,
                        boolean dumpCache)
                 throws java.io.IOException

Throws:

java.io.IOException