001    /*
002     * Copyright (C) 2012 eXo Platform SAS.
003     *
004     * This is free software; you can redistribute it and/or modify it
005     * under the terms of the GNU Lesser General Public License as
006     * published by the Free Software Foundation; either version 2.1 of
007     * the License, or (at your option) any later version.
008     *
009     * This software is distributed in the hope that it will be useful,
010     * but WITHOUT ANY WARRANTY; without even the implied warranty of
011     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
012     * Lesser General Public License for more details.
013     *
014     * You should have received a copy of the GNU Lesser General Public
015     * License along with this software; if not, write to the Free
016     * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
017     * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
018     */
019    
020    package org.crsh.cli.impl.invocation;
021    
022    public interface Resolver {
023    
024      Resolver EMPTY = new Resolver() {
025        public <T> T resolve(Class<T> type) {
026          return null;
027        }
028      };
029    
030      /**
031       * Resolve the specified type to an instance.
032       *
033       * @param type the type to resolve
034       * @param <T> the generic type parameter
035       * @return the resolved instance
036       */
037      <T> T resolve(Class<T> type);
038    
039    }