Package org.apache.openjpa.datacache

Class DefaultCacheDistributionPolicy

java.lang.Object

org.apache.openjpa.datacache.DefaultCacheDistributionPolicy

All Implemented Interfaces:

CacheDistributionPolicy, Configurable

Direct Known Subclasses:

TypeBasedCacheDistributionPolicy

public class DefaultCacheDistributionPolicy
extends Object
implements CacheDistributionPolicy

A default implementation that selects the cache by the type of the given managed instance. The name of the cache is determined by name as specified by the metadata.

See Also:

ClassMetaData.getDataCacheName()

Constructor Summary

Constructors

Constructor	Description
DefaultCacheDistributionPolicy()

Method Summary

Modifier and Type	Method	Description
void	endConfiguration()
String	selectCache(OpenJPAStateManager sm, Object context)	Selects the name of the cache where the given managed proxy object state be cached.
void	setConfiguration(Configuration conf)
void	startConfiguration()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultCacheDistributionPolicy

public DefaultCacheDistributionPolicy()

Method Detail

selectCache

public String selectCache(OpenJPAStateManager sm,
                          Object context)

Description copied from interface: CacheDistributionPolicy

Selects the name of the cache where the given managed proxy object state be cached.

Specified by:

selectCache in interface CacheDistributionPolicy

Parameters:

sm - the managed proxy object to be cached. The actual managed instance can be accessed from the proxy instance simply as sm.getManagedInstance().

context - the context of invocation. No specific semantics is attributed currently. Can be null.

Returns:

name of the cache or null, implying that that the instance should not be cached.

endConfiguration

public void endConfiguration()

Specified by:

endConfiguration in interface Configurable

setConfiguration

public void setConfiguration(Configuration conf)

Specified by:

setConfiguration in interface Configurable

startConfiguration

public void startConfiguration()

Specified by:

startConfiguration in interface Configurable