/*
* Copyright (C) 2009 eXo Platform SAS.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.xcmis.search.content.command;
import org.xcmis.search.content.interceptors.Visitor;
/**
* A type of command that can accept {@link Visitor}s.
*/
public interface VisitableCommand
{
/**
* Accept a visitor, and return the result of accepting this visitor.
*
* @param ctx invocation context
* @param visitor visitor to accept
* @return arbitrary return value
* @throws Throwable in the event of problems
*/
Object acceptVisitor(InvocationContext ctx, Visitor visitor) throws Throwable;
}