package org.sigmah.offline.sync;
/*
* #%L
* Sigmah
* %%
* Copyright (C) 2010 - 2016 URD
* %%
* 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 com.google.gwt.user.client.rpc.AsyncCallback;
/**
* Defines a callback handling only the success case.
* The failure case can be delegated to another callback.
*
* @author Raphaƫl Calabro (rcalabro@ideia.fr)
*/
public abstract class SuccessCallback<T> implements AsyncCallback<T> {
private final AsyncCallback<?> failureCallback;
public SuccessCallback() {
this.failureCallback = null;
}
public SuccessCallback(AsyncCallback<?> failureCallback) {
this.failureCallback = failureCallback;
}
@Override
public void onFailure(Throwable caught) {
if (failureCallback != null) {
failureCallback.onFailure(caught);
}
}
}