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COOS - Connected Objects Operating System ( Copyright (C) 2009 Telenor ASA and Tellu AS. All rights reserved. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. This library is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program. If not, see <>. You may also contact one of the following for additional information: Telenor ASA, Snaroyveien 30, N-1331 Fornebu, Norway ( Tellu AS, Hagalokkveien 13, N-1383 Asker, Norway (
package org.coos.messaging.util;

Knut Eilif Husa, Tellu AS An object queue
public class Queue {
	private Vector vec = new Vector();
	synchronized public void put(Object o) {
		// Add the element
		// There might be threads waiting for the new object --
		// give them a chance to get it
	synchronized public Object get() throws InterruptedException {
		while (true) {
			if (.size() > 0) {
				// There's an available object!
				Object o = .elementAt(0);
				// Remove it from our internal list, so someone else
				// doesn't get it.
				// Return the object
				return o;
else {
				// There aren't any objects available. Do a wait(),
				// and when we wake up, check again to see if there
				// are any.
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