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org.scopemvc.util
Class ObjectPoolManager  

java.lang.Object
  org.scopemvc.util.ObjectPoolManager

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public class ObjectPoolManager

extends java.lang.Object

Manages pooling of instances of different classes.

Version:

$Revision: 1.3 $ $Date: 2002/01/26 09:46:20 $

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Field Summary
private static ObjectPoolManager	INSTANCE           The singleton instance of this class
private static org.apache.commons.logging.Log	LOG
private  java.util.Map	poolByClass           Object pools keyed by class

 

Constructor Summary
private	ObjectPoolManager()           Constructor.

 

Method Summary
void	addObjectPool(java.lang.Class clazz, ObjectPool pool)           Adds a pool to be managed.
java.lang.Object	borrowObject(java.lang.Class clazz)           Obtains an instance of the sepcified class from the pool.
java.lang.Object	borrowObjectIfExists(java.lang.Class clazz)           Obtains an instance of the specified class from the pool.
static ObjectPoolManager	getInstance()           Obtains the singleton instance of this class.
ObjectPool	getObjectPool(java.lang.Class clazz)           Obtains the pool for the given class
void	returnObject(java.lang.Object object)           Returns an instance to the pool.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

LOG

private static final org.apache.commons.logging.Log LOG

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INSTANCE

private static final ObjectPoolManager INSTANCE

The singleton instance of this class

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poolByClass

private final java.util.Map poolByClass

Object pools keyed by class

Constructor Detail

ObjectPoolManager

private ObjectPoolManager()

Constructor.

Method Detail

getInstance

public static ObjectPoolManager getInstance()

Obtains the singleton instance of this class.

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borrowObject

public final java.lang.Object borrowObject(java.lang.Class clazz)

Obtains an instance of the sepcified class from the pool. Blocks if no free instances.

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borrowObjectIfExists

public final java.lang.Object borrowObjectIfExists(java.lang.Class clazz)

Obtains an instance of the specified class from the pool. Returns null if no free instances.

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returnObject

public final void returnObject(java.lang.Object object)

Returns an instance to the pool.

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getObjectPool

public final ObjectPool getObjectPool(java.lang.Class clazz)

Obtains the pool for the given class

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addObjectPool

public final void addObjectPool(java.lang.Class clazz,
                                ObjectPool pool)

Adds a pool to be managed.

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