Nick Burch 17bcf56a93 ActionTrackingService work
Initial cancel support, and some duplicate instance work (mostly updating tests to handle it coming along). Duplicate id assignment work still remains


git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@21340 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
2010-07-21 15:49:19 +00:00

44 lines
1.7 KiB
Java

/*
* Copyright (C) 2005-2010 Alfresco Software Limited.
*
* This file is part of Alfresco
*
* Alfresco 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 3 of the License, or
* (at your option) any later version.
*
* Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
*/
package org.alfresco.service.cmr.action;
import org.alfresco.repo.action.ActionCancelledException;
import org.alfresco.repo.action.executer.ActionExecuter;
/**
* A marker interface that forms part of the Cancel Action contract.
* An action that implements this interface commits to periodically
* asking the {@link ActionTrackingService} if a cancel of it has
* been requested, and orderly terminating itself if so.
*
* Actions implementing this should, via their
* {@link ActionExecuter}, periodically call
* {@link ActionTrackingService#isCancellationRequested(CancellableAction)}
* to check if a cancel has been requested for them.
* If it has, they should tidy up as much as possible, and then throw
* a {@link ActionCancelledException} to indicate to the
* {@link ActionService} that they ceased running due to a
* cancel.
*
* @author Nick Burch
*/
public interface CancellableAction extends Action
{
}