org.jasig.portal.utils
Class SetCheckInSemaphore

java.lang.Object
  org.jasig.portal.utils.SetCheckInSemaphore

public class SetCheckInSemaphore
extends Object

This is a weird semaphore that makes every thread wait, until all of Strings from a given set have been "checked in".

Version:

$Revision: 19776 $

Author:

Peter Kharchenko pkharchenko@interactivebusiness.com"

Constructor Summary

SetCheckInSemaphore(Set registrySet)
Creates a new CountDownSemaphore instance.

Method Summary

void	checkIn(Object key) Check in a key, but do not wait on the semaphore.
void	checkInAll() Checks in all the remaining values, so that all threads can proceed immediately.
void	checkInAndWaitOn(Object key) Checks in with a given name, and waits for others.
void	waitOn() Wait on the semaphore, without checking in any keys.

Methods inherited from class java.lang.Object

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

Constructor Detail

SetCheckInSemaphore

public SetCheckInSemaphore(Set registrySet)

Creates a new CountDownSemaphore instance.

Parameters:

registrySet - a Set of key objects that will have to be "checked in" before any waiting threads are allowed to proceed.

Method Detail

checkInAndWaitOn

public void checkInAndWaitOn(Object key)

Checks in with a given name, and waits for others.

Parameters:

key - an Object value

checkIn

public void checkIn(Object key)

Check in a key, but do not wait on the semaphore.

Parameters:

key - an Object value

waitOn

public void waitOn()

Wait on the semaphore, without checking in any keys.

checkInAll

public void checkInAll()

Checks in all the remaining values, so that all threads can proceed immediately.