com.google.gwt.inject.client.AsyncProvider Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of gin Show documentation

GIN (GWT INjection) brings automatic dependency injection to Google Web Toolkit client-side code. GIN is built on top of Guice and uses (a subset of) Guice's binding language.

There is a newer version: 2.1.2

Show newest version

/*
 * Copyright 2010 Google 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.google.gwt.inject.client;

import com.google.gwt.user.client.rpc.AsyncCallback;

/**
 * An object capable of providing an instance of type T asynchronously
 * via {@link AsyncCallback}. The instance is created within a
 * GWT.runAsync block using the following template:
 * 
 *   *      public void get(final AsyncCallback callback) {
 *        GWT.runAsync(new RunAsyncCallback() {
 *          public void onSuccess() {
 *            callback.onSuccess(Provider.get());
 *          }
 *          public void onFailure(Throwable ex) {
 *            callback.onFailure(ex);
 *          }
 *        }
 *      }
 *  
 *   
 */
public interface AsyncProvider {

  /**
   * @param callback Callback used to pass the instance of T or an exception
   *    if there is an issue creating that instance.
   */
  void get(AsyncCallback callback);
}