001    /*
002     * Copyright (C) 2006-2007 the original author or authors.
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     */
016    
017    package org.codehaus.gmaven.feature;
018    
019    import java.util.Collection;
020    
021    /**
022     * A provider which provides features.
023     *
024     * @version $Id: Provider.java 9 2009-07-16 09:22:08Z user57 $
025     * @author <a href="mailto:jason@planet57.com">Jason Dillon</a>
026     */
027    public interface Provider
028    {
029        String key();
030    
031        String name();
032    
033        Version version();
034    
035        boolean supported();
036    
037        void require();
038        
039        Configuration config();
040    
041        Collection features();
042        
043        Feature feature(String key);
044    
045        Feature feature(Class key);
046    }