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 */
017package net.dpml.cli.validation;
018
019import 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="@PUBLISHER-URL@">@PUBLISHER-NAME@</a>
029 * @version @PROJECT-VERSION@
030 */
031public 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}