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.shared.command.Command;
import org.activityinfo.legacy.shared.command.result.CommandResult;
/**
* Provides an interface through which caches can monitor the execution of
* remote service calls.
*
* @param <T> The type of command for which to listen.
*/
public interface DispatchListener<T extends Command> {
/**
* Called just before action is taken to dispatch the given the Command.
* Listeners can use this event to invalidate caches that would be affected
* by mutating commands.
*/
void beforeDispatched(T command);
/**
* Called following the successful dispatch of the given command.
*/
void onSuccess(T command, CommandResult result);
/**
* Called following the failure, expected or otherwise, of the given command
*/
public void onFailure(T command, Throwable caught);
}