/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

* Comparator for position arrays

*

*/

package com.nokia.tracecompiler.source;

import java.util.Comparator;

/**

 * Comparator for position arrays

 * 

 */

public final class PositionArrayComparator implements

		Comparator<SourceLocationBase> {

	/*

	 * (non-Javadoc)

	 * 

	 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)

	 */

	public int compare(SourceLocationBase arrayElement, SourceLocationBase key) {

		int retval;

		if (key.getOffset() < arrayElement.getOffset()) {

			// Start is inclusive

			retval = 1;

		} else if (key.getOffset() >= arrayElement.getOffset()

				+ arrayElement.getLength()) {

			// End is exclusive

			retval = -1;

		} else {

			retval = 0;

		}

		return retval;

	}

}