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 */
019package org.crsh.shell.impl.command.spi;
020
021import org.crsh.cli.impl.invocation.InvocationMatch;
022
023/**
024 * The real command that will be used in an command pipeline.
025 *
026 * @param <C> the consumed type
027 * @param <P> the the produced type
028 */
029public abstract class Command<C, P> {
030
031  /**
032   * @return an invoker for this command.
033   * @throws CommandCreationException
034   */
035  public  abstract CommandInvoker<C, P> getInvoker() throws CommandCreationException;
036
037  /**
038   * @return the match that created this command
039   */
040  public abstract InvocationMatch<?> getMatch();
041
042  /**
043   * @return the command produced type
044   */
045  public abstract Class<P> getProducedType();
046
047  /**
048   * @return the command consumed type
049   */
050  public abstract Class<C> getConsumedType();
051}