DifferentiatorAdapter.java

/*******************************************************************************
 * Copyright (c) 1998, 2015 Oracle and/or its affiliates. All rights reserved.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
 * which accompanies this distribution.
 * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
 * and the Eclipse Distribution License is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * Contributors:
 *     Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.tools.workbench.utility.diff;

/**
 * Pluggable adapter that allows the same code to be used for both "normal"
 * and "key" diffs.
 */
public interface DifferentiatorAdapter {

    /**
     * Adapt the specified differentiator to "diff" the specified objects.
     */
    Diff diff(Differentiator differentiator, Object object1, Object object2);


    DifferentiatorAdapter NORMAL = new DifferentiatorAdapter() {
        public Diff diff(Differentiator differentiator, Object object1, Object object2) {
            return differentiator.diff(object1, object2);
        }
    };

    DifferentiatorAdapter KEY = new DifferentiatorAdapter() {
        public Diff diff(Differentiator differentiator, Object object1, Object object2) {
            return differentiator.keyDiff(object1, object2);
        }
    };

}