001    package org.apache.fulcrum.intake.validator;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     *   http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    /**
023     * Interface to define the compare operation betwen two field values
024     *
025     * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a>
026     * @version $Id: DateStringValidator.java 534527 2007-05-02 16:10:59Z tv $
027     */
028    public interface CompareCallback
029    {
030        /**
031         * Compare the given values using the compare operation provided
032         * 
033         * @param compare type of compare operation
034         * @param thisValue value of this field
035         * @param refValue value of the reference field
036         * 
037         * @return the result of the comparison
038         */
039        public boolean compareValues(int compare, Object thisValue, Object refValue)
040            throws ClassCastException;
041    }