com.gwtplatform.dispatch.client.DelagatingCallbackDispatchRequest Maven / Gradle / Ivy
/**
* Copyright 2011 ArcBees Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.gwtplatform.dispatch.client;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.gwtplatform.dispatch.shared.DispatchRequest;
/**
* An implementation of {@link DispatchRequest} that should be used by
* {@link com.gwtplatform.dispatch.client.actionhandler.ClientActionHandler ClientActionHandler}s
* that make asynchronous calls that return a {@link com.google.gwt.http.client.Request Request}.
*
* This class also takes a {@link DispatchRequest} and delegate work to this {@link DispatchRequest}.
*
* This class is used within
* {@link com.gwtplatform.dispatch.client.actionhandler.caching.AbstractCachingClientActionHandler
* AbstractCachingClientActionHandler}
* to be able to store inside an HashMap {@link DefaultCallbackDispatchRequest} while keeping
* {@link GwtHttpDispatchRequest} nature.
*
* @param The type of the {@link AsyncCallback}.
* @author Christian Goudreau
*/
public class DelagatingCallbackDispatchRequest implements CallbackDispatchRequest {
private final DispatchRequest request;
private final AsyncCallback callback;
public DelagatingCallbackDispatchRequest(DispatchRequest request,
AsyncCallback callback) {
this.request = request;
this.callback = callback;
}
@Override
public void cancel() {
request.cancel();
}
@Override
public boolean isPending() {
return request.isPending();
}
@Override
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
@Override
public void onSuccess(R result) {
callback.onSuccess(result);
}
}