org.apache.taglibs.standard.lang.jstl.EqualityOperator Maven / Gradle / Ivy

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.taglibs.standard.lang.jstl;

/**
 * This is the superclass for all equality operators (==, !=)
 *
 * @author Nathan Abramson - Art Technology Group
 */

public abstract class EqualityOperator
        extends BinaryOperator {
    //-------------------------------------

    /**
     * Applies the operator to the given value
     */
    public Object apply(Object pLeft,
                        Object pRight,
                        Object pContext,
                        Logger pLogger)
            throws ELException {
        return Coercions.applyEqualityOperator(pLeft, pRight, this, pLogger);
    }

    //-------------------------------------

    /**
     * Applies the operator given the fact that the two elements are
     * equal.
     */
    public abstract boolean apply(boolean pAreEqual,
                                  Logger pLogger);

    //-------------------------------------
}