gov.nasa.ensemble.common.ui.treetable.DefaultViewerComparator.java Source code

Introduction

Here is the source code for gov.nasa.ensemble.common.ui.treetable.DefaultViewerComparator.java

Source

/*******************************************************************************
 * Copyright 2014 United States Government as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package gov.nasa.ensemble.common.ui.treetable;

import gov.nasa.ensemble.common.collections.DefaultComparator;

import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;

public class DefaultViewerComparator extends ViewerComparator {

    public static final DefaultViewerComparator INSTANCE = new DefaultViewerComparator();

    /**
     * @param viewer
     * @param e1
     * @param e2
     * @return a negative number if the first element is less than the 
      *  second element; the value <code>0</code> if the first element is
      *  equal to the second element; and a positive number if the first
      *  element is greater than the second element
     */
    @Override
    @SuppressWarnings("unchecked")
    public int compare(Viewer viewer, Object e1, Object e2) {
        return DefaultComparator.INSTANCE.compare(e1, e2);
    }

}