org.codehaus.xfire.util.factory
Class SingletonPool

java.lang.Object
  org.codehaus.xfire.util.factory.CachingPool
      org.codehaus.xfire.util.factory.SingletonPool

All Implemented Interfaces:

java.io.Serializable, Pool

public class SingletonPool
extends CachingPool

Represents a pooling strategy that pools the data in a variable that's global to all threads.
This implementation is thread-safe.

Author:

Ben Yu

See Also:

Serialized Form

Constructor Summary

SingletonPool()

Method Summary

java.lang.Object	getInstance(Factory factory) Apply the pooling strategy and return an instance from either the pool or the factory.
java.lang.Object	getPooledInstance(java.lang.Object def) Get the instance that's already pooled.
boolean	isPooled() Is this pool currently having something in cache?

Methods inherited from class java.lang.Object

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

Constructor Detail

SingletonPool

public SingletonPool()

Method Detail

getInstance

public java.lang.Object getInstance(Factory factory)
                             throws java.lang.Throwable

Description copied from interface: Pool

Apply the pooling strategy and return an instance from either the pool or the factory.

Specified by:

getInstance in interface Pool

Overrides:

getInstance in class CachingPool

Parameters:

factory - the factory to create the object instance.

Returns:

the object instance.

Throws:

java.lang.Throwable

getPooledInstance

public java.lang.Object getPooledInstance(java.lang.Object def)

Description copied from interface: Pool

Get the instance that's already pooled.

Specified by:

getPooledInstance in interface Pool

Overrides:

getPooledInstance in class CachingPool

Parameters:

def - the default value to return if there's no pooled instance.

Returns:

the pooled instance or the default object.

isPooled

public boolean isPooled()

Description copied from class: CachingPool

Is this pool currently having something in cache?

Specified by:

isPooled in interface Pool

Overrides:

isPooled in class CachingPool