de.walware.ecommons.ui.util.ComparatorViewerComparator.java Source code

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Here is the source code for de.walware.ecommons.ui.util.ComparatorViewerComparator.java

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/*=============================================================================#
 # Copyright (c) 2010-2015 Stephan Wahlbrink (WalWare.de) and others.
 # 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
 # 
 # Contributors:
 #     Stephan Wahlbrink - initial API and implementation
 #=============================================================================*/

package de.walware.ecommons.ui.util;

import java.util.Arrays;
import java.util.Comparator;

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

/**
 * Viewer Comparator using a common comparator to compare the elements.
 */
public class ComparatorViewerComparator extends ViewerComparator {

    private final Comparator fComparator;

    public ComparatorViewerComparator(final Comparator comparator) {
        fComparator = comparator;
    }

    @Override
    public int compare(final Viewer viewer, final Object e1, final Object e2) {
        return fComparator.compare(e1, e2);
    }

    @Override
    public void sort(final Viewer viewer, final Object[] elements) {
        Arrays.sort(elements, fComparator);
    }

}