Package net.ontopia.persistence.proxy

Class QueryCache<K,E>

java.lang.Object

net.ontopia.persistence.proxy.QueryCache<K,E>

All Implemented Interfaces:

CacheMetricsIF, EvictableIF<K,E>

public class QueryCache<K,E>
extends Object
implements EvictableIF<K,E>, CacheMetricsIF

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

Field Summary

Fields

Modifier and Type	Field	Description
protected CacheIF<K,E>	cache
protected Map<K,E>	lru
protected int	lrusize
protected DetachedQueryIF	query

Method Summary

Modifier and Type	Method	Description
void	clear(boolean notifyCluster)
E	executeQuery(StorageAccessIF access, K cachekey, Object[] query_params)
long	getCacheSize()
long	getLRUSize()
long	getMaxLRUSize()
E	remove(K key)
E	remove(K key, boolean notifyCluster)
void	removeAll(Collection<K> keys)
void	removeAll(Collection<K> keys, boolean notifyCluster)
void	writeReport(Writer out, boolean dumpCache)

Methods inherited from class java.lang.Object

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

Field Details

query

protected DetachedQueryIF query

cache

protected CacheIF<K,E> cache

lru

protected Map<K,E> lru

lrusize

protected int lrusize

Method Details

executeQuery

public E executeQuery(StorageAccessIF access,
 K cachekey,
 Object[] query_params)

remove

public E remove(K key)

removeAll

public void removeAll(Collection<K> keys)

remove

public E remove(K key,
 boolean notifyCluster)

Specified by:

remove in interface EvictableIF<K,E>

removeAll

public void removeAll(Collection<K> keys,
 boolean notifyCluster)

Specified by:

removeAll in interface EvictableIF<K,E>

clear

public void clear(boolean notifyCluster)

Specified by:

clear in interface EvictableIF<K,E>

writeReport

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

Throws:

IOException

getCacheSize

public long getCacheSize()

Specified by:

getCacheSize in interface CacheMetricsIF

getLRUSize

public long getLRUSize()

Specified by:

getLRUSize in interface CacheMetricsIF

getMaxLRUSize

public long getMaxLRUSize()

Specified by:

getMaxLRUSize in interface CacheMetricsIF