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org.apache.excalibur.mpool
Class BlockingFixedSizePool

java.lang.Object
  org.apache.excalibur.mpool.BlockingFixedSizePool

All Implemented Interfaces:

Disposable, Initializable, Pool

public final class BlockingFixedSizePool

extends java.lang.Object

implements Pool, Disposable, Initializable

This is an Pool that caches Poolable objects for reuse. Please note that this pool offers no resource limiting whatsoever.

Since:

4.1

Version:

CVS $Revision: 1.4 $ $Date: 2004/02/28 11:47:34 $

Author:

Avalon Development Team

Field Summary

protected java.lang.Object

m_semaphore The semaphor we synchronize on

Constructor Summary

BlockingFixedSizePool(ObjectFactory factory, int size)

BlockingFixedSizePool(ObjectFactory factory, int size, long timeout)

Method Summary

java.lang.Object	acquire() Acquire an instance of the pooled object.
void	dispose() The dispose operation is called at the end of a components lifecycle.
void	initialize() Initialize the component.
java.lang.Object	newInstance() Create a new instance of the object being pooled.
void	release(java.lang.Object object) Release the instance of the pooled object.

Methods inherited from class java.lang.Object

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

Field Detail

m_semaphore

protected final java.lang.Object m_semaphore

The semaphor we synchronize on

Constructor Detail

BlockingFixedSizePool

public BlockingFixedSizePool(ObjectFactory factory,
                             int size)
                      throws java.lang.Exception

BlockingFixedSizePool

public BlockingFixedSizePool(ObjectFactory factory,
                             int size,
                             long timeout)
                      throws java.lang.Exception

Method Detail

initialize

public void initialize()
                throws java.lang.Exception

Description copied from interface: Initializable

Initialize the component. Initialization includes allocating any resources required throughout the component's lifecycle.

Specified by:

initialize in interface Initializable

Throws:

java.lang.Exception - if an error occurs

acquire

public java.lang.Object acquire()

Description copied from interface: Pool

Acquire an instance of the pooled object.

Specified by:

acquire in interface Pool

Returns:

the pooled Object instance

release

public void release(java.lang.Object object)

Description copied from interface: Pool

Release the instance of the pooled object.

Specified by:

release in interface Pool

Parameters:

object - The pooled object to release to the pool.

newInstance

public java.lang.Object newInstance()
                             throws java.lang.Exception

Description copied from interface: Pool

Create a new instance of the object being pooled.

Specified by:

newInstance in interface Pool

Returns:

the pooled Object instance

Throws:

java.lang.Exception - if the instance cannot be created

dispose

public void dispose()

Description copied from interface: Disposable

The dispose operation is called at the end of a components lifecycle. This method will be called after Startable.stop() method (if implemented by component). Components use this method to release and destroy any resources that the Component owns.

Specified by:

dispose in interface Disposable