package org.activityinfo.legacy.client;
/*
* #%L
* ActivityInfo Server
* %%
* Copyright (C) 2009 - 2013 UNICEF
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
import org.activityinfo.legacy.client.remote.cache.CacheResult;
import org.activityinfo.legacy.shared.command.Command;
/**
* Interface to a class which is capable of handling
* {@link org.activityinfo.legacy.shared.command.Command}s locally, before they are
* sent to the server.
*
* @param <T>
*/
public interface CommandCache<T extends Command> {
/**
* Tries to the execute the command locally.
*
* @param command the command to execute
* @return a ProxyResult instance indicating whether local execution was
* possible, and the CommandResult if it was.
*/
CacheResult maybeExecute(T command);
/**
* Clears the cache, discarding any cached data
*/
void clear();
}