org.apache.ojb.broker.cache
Class ObjectCacheSoftImpl

java.lang.Object
  org.apache.ojb.broker.cache.ObjectCacheSoftImpl

All Implemented Interfaces:

ObjectCache, org.apache.ojb.broker.util.configuration.Configurable

public class ObjectCacheSoftImpl
extends java.lang.Object
implements ObjectCache, org.apache.ojb.broker.util.configuration.Configurable

A global ObjectCache implementation.

Version:

$Id: ObjectCacheSoftImpl.java 365232 2005-12-21 22:36:07Z tomdz $

Author:

matthew.baird

Nested Class Summary

static class

ObjectCacheSoftImpl.SoftHashMap Kind of map using SoftReference to store values

Constructor Summary

ObjectCacheSoftImpl(PersistenceBroker broker, java.util.Properties properties)
Constructor called by ojb

Method Summary

void	cache(Identity oid, java.lang.Object obj) Used to cache objects by it's Identity.
boolean	cacheIfNew(Identity oid, java.lang.Object obj)
void	clear() Clear the cache.
void	configure(org.apache.ojb.broker.util.configuration.Configuration configuration) configure an object using the Configuration pConfig
java.lang.Object	lookup(Identity oid) Lookup object with Identity 'oid' in cache.
void	remove(Identity oid) Removes an Object from the cache.

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectCacheSoftImpl

public ObjectCacheSoftImpl(PersistenceBroker broker,
                           java.util.Properties properties)

Constructor called by ojb

Parameters:

broker - ignored parameter

properties - ignored parameter

Method Detail

configure

public void configure(org.apache.ojb.broker.util.configuration.Configuration configuration)
               throws org.apache.ojb.broker.util.configuration.ConfigurationException

Description copied from interface: org.apache.ojb.broker.util.configuration.Configurable

configure an object using the Configuration pConfig

Specified by:

configure in interface org.apache.ojb.broker.util.configuration.Configurable

Parameters:

configuration - the Configuration object used to configure current instance

Throws:

org.apache.ojb.broker.util.configuration.ConfigurationException

See Also:

Configurable.configure(org.apache.ojb.broker.util.configuration.Configuration)

cache

public void cache(Identity oid,
                  java.lang.Object obj)

Description copied from interface: ObjectCache

Used to cache objects by it's Identity.

Specified by:

cache in interface ObjectCache

Parameters:

oid - Identity of the object to cache.

obj - The object to cache.

See Also:

ObjectCache.cache(org.apache.ojb.broker.Identity, java.lang.Object)

cacheIfNew

public boolean cacheIfNew(Identity oid,
                          java.lang.Object obj)

lookup

public java.lang.Object lookup(Identity oid)

Description copied from interface: ObjectCache

Lookup object with Identity 'oid' in cache.

Specified by:

lookup in interface ObjectCache

Parameters:

oid - Identity of the object to search for.

Returns:

The cached object or null if no matching object for specified Identity is found.

See Also:

ObjectCache.lookup(org.apache.ojb.broker.Identity)

remove

public void remove(Identity oid)

Description copied from interface: ObjectCache

Removes an Object from the cache.

Specified by:

remove in interface ObjectCache

Parameters:

oid - Identity of the object to be removed.

See Also:

ObjectCache.remove(org.apache.ojb.broker.Identity)

clear

public void clear()

Description copied from interface: ObjectCache

Clear the cache.

Specified by:

clear in interface ObjectCache

See Also:

ObjectCache.clear()