nl.knowledgeplaza.util.pool
Class PriorityObjectPool

java.lang.Object
  nl.knowledgeplaza.util.pool.BaseObjectPool
      nl.knowledgeplaza.util.pool.PriorityObjectPool

All Implemented Interfaces:

ObjectPool

Direct Known Subclasses:

FastestFirstObjectPool

public class PriorityObjectPool
extends BaseObjectPool
implements ObjectPool

This class implements a priority pool. This means that the pooled objects are sorted according to criteria implemented by a Comparator.

Version:

$Revision: 1.2 $

Author:

$Author: toeukpap $

See Also:

Nested Class Summary

Nested classes/interfaces inherited from class nl.knowledgeplaza.util.pool.BaseObjectPool

BaseObjectPool.NotFromThisPoolException, BaseObjectPool.TimeOutException

Field Summary

protected SortedList	iListOfPooledObjects the storage
static java.lang.String	SOURCECODE_VERSION Standard variable for determining version of a class file.

Fields inherited from class nl.knowledgeplaza.util.pool.BaseObjectPool

iClose, iListOfHandedOutObjects, iListOfHandedOutObjectsSync, iShuttingDown, iSynchronized, itestOnBorrow, MAINTENANCE_PERIOD, WHEN_EXHAUSTED_BLOCK, WHEN_EXHAUSTED_FAIL

Constructor Summary

PriorityObjectPool()
Initialize Assume that the pooled objects are Comparable

PriorityObjectPool(java.util.Collection collection)
Initialize Assume that the pooled objects are Comparable

PriorityObjectPool(java.util.Collection collection, java.util.Comparator comparator)
Initialize

PriorityObjectPool(java.util.Comparator comparator)
Initialize

PriorityObjectPool(PoolableObjectFactory poolableObjectFactory)
Initialize Assume that the pooled objects are Comparable

PriorityObjectPool(PoolableObjectFactory poolableObjectFactory, java.util.Comparator comparator)
Initialize

Method Summary

protected java.util.Collection	getPooledObjectsImpl() this method allows read only access to the collection of handed out objects, used by the generic algorithm
protected java.lang.Object	obtainPooledObjectImpl() this method obtains a pooled object, the implementation determines the behaviour (LIFO, FIFO, etc)
protected void	returnPooledObjectImpl(java.lang.Object o) this method returns a pooled object, the implementation determines the behaviour (LIFO, FIFO, etc)

Methods inherited from class nl.knowledgeplaza.util.pool.BaseObjectPool

addObject, borrowObject, clear, close, factoryActivateObject, factoryDestroyObject, factoryMakeObject, factoryPassivateObject, factoryValidateObject, fill, getFactory, getMaxActive, getMaxIdle, getMaxWait, getName, getNameDescription, getNumActive, getNumberOfObjectsScheduledForDestruction, getNumIdle, getPooledObjects, getTestOnBorrow, getWhenExhaustedAction, invalidateObject, isClosed, isShuttingDown, isSynchronized, maintenance, obtainPooledObject, returnObject, returnPooledObject, setFactory, setMaxActive, setMaxIdle, setMaxWait, setName, setSynchronized, setTestOnBorrow, setWhenExhaustedAction, shutdown

Methods inherited from class java.lang.Object

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

Methods inherited from interface nl.knowledgeplaza.util.pool.ObjectPool

addObject, borrowObject, clear, close, getNumActive, getNumIdle, invalidateObject, isSynchronized, returnObject, setFactory, setSynchronized, shutdown

Field Detail

SOURCECODE_VERSION

public static final java.lang.String SOURCECODE_VERSION

Standard variable for determining version of a class file.

See Also:

Constant Field Values

iListOfPooledObjects

protected SortedList iListOfPooledObjects

the storage

Constructor Detail

PriorityObjectPool

public PriorityObjectPool()

Initialize Assume that the pooled objects are Comparable

PriorityObjectPool

public PriorityObjectPool(java.util.Comparator comparator)

Initialize

PriorityObjectPool

public PriorityObjectPool(PoolableObjectFactory poolableObjectFactory)

Initialize Assume that the pooled objects are Comparable

PriorityObjectPool

public PriorityObjectPool(PoolableObjectFactory poolableObjectFactory,
                          java.util.Comparator comparator)

Initialize

PriorityObjectPool

public PriorityObjectPool(java.util.Collection collection)

Initialize Assume that the pooled objects are Comparable

PriorityObjectPool

public PriorityObjectPool(java.util.Collection collection,
                          java.util.Comparator comparator)

Initialize

Method Detail

getPooledObjectsImpl

protected java.util.Collection getPooledObjectsImpl()

Description copied from class: BaseObjectPool

this method allows read only access to the collection of handed out objects, used by the generic algorithm

Specified by:

getPooledObjectsImpl in class BaseObjectPool

obtainPooledObjectImpl

protected java.lang.Object obtainPooledObjectImpl()

Description copied from class: BaseObjectPool

this method obtains a pooled object, the implementation determines the behaviour (LIFO, FIFO, etc)

Specified by:

obtainPooledObjectImpl in class BaseObjectPool

returnPooledObjectImpl

protected void returnPooledObjectImpl(java.lang.Object o)

Description copied from class: BaseObjectPool

this method returns a pooled object, the implementation determines the behaviour (LIFO, FIFO, etc)

Specified by:

returnPooledObjectImpl in class BaseObjectPool