/* XXL: The eXtensible and fleXible Library for data processing

Copyright (C) 2000-2011 Prof. Dr. Bernhard Seeger
                        Head of the Database Research Group
                        Department of Mathematics and Computer Science
                        University of Marburg
                        Germany

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 library 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 library;  If not, see <http://www.gnu.org/licenses/>. 

    http://code.google.com/p/xxl/

*/

package xxl.core.util.concurrency;

/**
 * This class is useful if threads are accessing a common variable 
 * (or for simulating reference parameters in methods).
 */
public class MutableBoolean {
	/** internal value */
	protected boolean value;

	/** 
	 * Creates a MutableBoolean.
	 * @param value sets the initial value 
	 */
	public MutableBoolean(boolean value) {
		this.value = value;
	}

	/** 
	 * Sets the internal value.
	 * @param value new value
	 */
	public synchronized void set(boolean value) {
		this.value = value;
	}

	/** 
	 * Gets the internal value.
	 * @return returns the internal value
	 */
	public synchronized boolean get() {
		return value;
	}
}