001    /*
002     * Copyright 2003-2005 The Apache Software Foundation
003     * Copyright 2005 Stephen McConnell
004     *
005     * Licensed under the Apache License, Version 2.0 (the "License");
006     * you may not use this file except in compliance with the License.
007     * You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package net.dpml.cli.validation;
018    
019    import java.util.List;
020    
021    /**
022     * The validation interface for validating argument values(s).
023     *
024     * A validator can replace the argument string value with a
025     * specific class instance e.g. the {@link URLValidator} replaces
026     * the string value with a {@link java.net.URL} instance.
027     *
028     * @author <a href="http://www.dpml.net">Digital Product Meta Library</a>
029     * @version 1.0.0
030     */
031    public interface Validator
032    {
033        /**
034         * Validate the specified values (List of Strings).
035         * 
036         * @param values The values to validate.
037         * @throws InvalidArgumentException If any of the 
038         * specified values are not valid.
039         */
040        void validate( List values ) throws InvalidArgumentException;
041    
042    }