/**********************************************************************
- * Copyright (c) 2005, 2006, 2011 IBM Corporation and others.
+ * Copyright (c) 2005, 2013 IBM Corporation, Ericsson
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
- * $Id: SortAsyncForBackward.java,v 1.2 2006/09/20 20:56:27 ewchan Exp $
- *
- * Contributors:
- * IBM - Initial API and implementation
- * Bernd Hufmann - Updated for TMF
+ *
+ * Contributors:
+ * IBM - Initial API and implementation
+ * Bernd Hufmann - Updated for TMF
**********************************************************************/
+
package org.eclipse.linuxtools.tmf.ui.views.uml2sd.util;
import java.io.Serializable;
import org.eclipse.linuxtools.tmf.ui.views.uml2sd.core.GraphNode;
/**
- * Asynchronous message comparator
- *
+ * Asynchronous message comparator.
+ *
* Compares two asyncMessages only taking into account the event occurrence when their
* appear.<br>
- *
+ *
* Used to order the AsyncMessage list insuring that the previous node has both of his ends smaller than the current node
- *
+ *
+ * @version 1.0
* @author sveyrier
- *
+ *
*/
public class SortAsyncForBackward implements Comparator<GraphNode>, Serializable {
+ // ------------------------------------------------------------------------
+ // Constants
+ // ------------------------------------------------------------------------
/**
* Serial version UID
*/
private static final long serialVersionUID = 603959931263853359L;
- /**
- * Compares two asynchronous messages Returns 0 (equal) if one of the message is not asynchronous
- *
- * @return 1 if arg0 is greater, 0 if equal, -1 otherwise
- */
+ // ------------------------------------------------------------------------
+ // Methods
+ // ------------------------------------------------------------------------
+
@Override
public int compare(GraphNode arg0, GraphNode arg1) {
if (arg0 instanceof AsyncMessage && arg1 instanceof AsyncMessage) {
int m1Max, m2Max;
// AsyncMessage has two ends which may have different event occurrences
// Search for the greater event occurrence for each messages
- if (m1.getStartOccurrence() > m1.getEndOccurrence())
+ if (m1.getStartOccurrence() > m1.getEndOccurrence()) {
m1Max = m1.getStartOccurrence();
- else
+ } else {
m1Max = m1.getEndOccurrence();
- if (m2.getStartOccurrence() > m2.getEndOccurrence())
+ }
+ if (m2.getStartOccurrence() > m2.getEndOccurrence()) {
m2Max = m2.getStartOccurrence();
- else
+ } else {
m2Max = m2.getEndOccurrence();
+ }
int m1Min, m2Min;
// Search for the smaller event occurrence for each messages
- if (m1.getStartOccurrence() > m1.getEndOccurrence())
+ if (m1.getStartOccurrence() > m1.getEndOccurrence()) {
m1Min = m1.getEndOccurrence();
- else
+ } else {
m1Min = m1.getStartOccurrence();
- if (m2.getStartOccurrence() > m2.getEndOccurrence())
+ }
+ if (m2.getStartOccurrence() > m2.getEndOccurrence()) {
m2Min = m2.getEndOccurrence();
- else
+ } else {
m2Min = m2.getStartOccurrence();
+ }
- if (m1Max > m2Max)
+ if (m1Max > m2Max) {
return 1;
- else if (m1Max == m2Max)
- if (m1Min == m2Min)
+ } else if (m1Max == m2Max) {
+ if (m1Min == m2Min) {
return 0;
- else if (m1Min > m2Min)
+ } else if (m1Min > m2Min) {
return -1;
- else
+ } else {
return 1;
- else
+ }
+ } else {
return -1;
- } else
- return 0;
+ }
+ }
+ return 0;
}
}