XORFilter.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.filters;

/**
 * This filter will "accept" any object that is accepted by either
 * of the specified wrapped filters, but not both. Both filters will
 * always be evaluated.
 */
public class XORFilter
    extends CompoundFilter
{
    private static final long serialVersionUID = 1L;


    /**
     * Construct a filter that will "accept" any object that is accept by either
     * of the specified wrapped filters, but not by both.
     */
    public XORFilter(Filter filter1, Filter filter2) {
        super(filter1, filter2);
    }

    /**
     * @see org.eclipse.persistence.tools.workbench.utility.Filter#accept(Object)
     */
    public boolean accept(Object o) {
        return this.filter1.accept(o) ^ this.filter2.accept(o);
    }

    /**
     * @see org.eclipse.persistence.tools.workbench.utility.CompoundFilter#operatorString()
     */
    protected String operatorString() {
        return "XOR";
    }

}