org.jboss.messaging.util
Class RotatingPool

java.lang.Object
  org.jboss.messaging.util.RotatingPool

Direct Known Subclasses:

QueuedExecutorPool

public abstract class RotatingPool

extends java.lang.Object

A RotatingPool This class makes sure requests on the same key always get the same value, and values for a specific key are obtained from a fixed size array of instances in a rotating fashion

Version:

$Revision: 1174 $ $Id: RotatingPool.java 1174 2006-08-02 14:14:32Z timfox $

Author:

Tim Fox

Field Summary

protected java.lang.Object[]	entries
protected java.util.Map	keyMappings
protected int	maxSize
protected int	pos

Constructor Summary

RotatingPool(int maxSize)

Method Summary

protected abstract java.lang.Object	createEntry()
java.lang.Object	get(java.lang.Object key)

Methods inherited from class java.lang.Object

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

Field Detail

maxSize

protected int maxSize

pos

protected int pos

entries

protected java.lang.Object[] entries

keyMappings

protected java.util.Map keyMappings

Constructor Detail

RotatingPool

public RotatingPool(int maxSize)

Method Detail

get

public java.lang.Object get(java.lang.Object key)

createEntry

protected abstract java.lang.Object createEntry()