001/*
002 *  Copyright 2012 Anyware Services
003 *
004 *  Licensed under the Apache License, Version 2.0 (the "License");
005 *  you may not use this file except in compliance with the License.
006 *  You may obtain a copy of the License at
007 *
008 *      http://www.apache.org/licenses/LICENSE-2.0
009 *
010 *  Unless required by applicable law or agreed to in writing, software
011 *  distributed under the License is distributed on an "AS IS" BASIS,
012 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 *  See the License for the specific language governing permissions and
014 *  limitations under the License.
015 */
016package org.ametys.runtime.parameter;
017
018import java.util.Map;
019
020/**
021 * Validator for parameters values 
022 */
023public interface Validator
024{
025    /**
026     * Validates a value.
027     * @param value the value to validate (can be <code>null</code>).
028     * @param errors the structure to populate if the validation failed.
029     */
030    public void validate(Object value, Errors errors);
031    
032    /**
033     * Retrieves the configuration of the validator. 
034     * @return a map containing the configuration information.
035     */
036    public Map<String, Object> getConfiguration();
037}