Java tutorial
/******************************************************************************* * Copyright 2011 Google Inc. All Rights Reserved. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * 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.unilorraine.projetdevie.client.activity; import java.util.ArrayList; import java.util.List; import com.unilorraine.projetdevie.client.ClientFactory; import com.unilorraine.projetdevie.client.place.ApplicationPanelPlace; import com.unilorraine.projetdevie.client.place.SamplePlace; import com.unilorraine.projetdevie.client.service.TaskService; import com.unilorraine.projetdevie.client.service.TaskServiceAsync; import com.unilorraine.projetdevie.client.service.init.DBInitService; import com.unilorraine.projetdevie.client.shared.transitentities.ITransitEntity; import com.unilorraine.projetdevie.client.shared.transitentities.TransitLPActor; import com.unilorraine.projetdevie.client.shared.transitentities.TransitLPInstitution; import com.unilorraine.projetdevie.client.shared.transitentities.TransitLPProject; import com.unilorraine.projetdevie.client.shared.transitentities.TransitLPTask; import com.unilorraine.projetdevie.client.shared.transitentities.TransitLPUser; import com.unilorraine.projetdevie.client.ui.AppContext; import com.unilorraine.projetdevie.client.ui.SampleView; import com.unilorraine.projetdevie.server.service.init.DBInitServiceImpl; import com.google.gwt.activity.shared.AbstractActivity; import com.google.gwt.core.client.GWT; import com.google.gwt.event.shared.EventBus; import com.google.gwt.place.shared.Place; import com.google.gwt.user.client.rpc.AsyncCallback; import com.google.gwt.user.client.ui.AcceptsOneWidget; /** * Activities are started and stopped by an ActivityManager associated with a container Widget. */ public class SampleActivity extends AbstractActivity implements SampleView.Presenter { /** * Used to obtain views, eventBus, placeController. * Alternatively, could be injected via GIN. */ private ClientFactory clientFactory; /** * Sample property. */ private String name; private TaskServiceAsync taskSrv = GWT.create(TaskService.class); public SampleActivity(SamplePlace place, ClientFactory clientFactory) { this.name = place.getName(); this.clientFactory = clientFactory; } @Override public void start(AcceptsOneWidget containerWidget, EventBus eventBus) { SampleView view = clientFactory.getSampleView(); view.setName(name); view.setPresenter(this); containerWidget.setWidget(view.asWidget()); initDB(); } public void initDB() { AsyncCallback<List<ITransitEntity>> callback = new AsyncCallback<List<ITransitEntity>>() { @Override public void onFailure(Throwable caught) { System.out.println("Error in populating db"); } @Override public void onSuccess(List<ITransitEntity> result) { //TODO we are so cheating here... System.out.println("Should have been populated"); TransitLPInstitution institution = (TransitLPInstitution) result.get(0); TransitLPActor actor = (TransitLPActor) result.get(1); TransitLPUser user = (TransitLPUser) result.get(2); TransitLPProject project = (TransitLPProject) result.get(3); ApplicationPanelPlace place = new ApplicationPanelPlace("Application Panel"); List<String> links = new ArrayList<String>(); links.add(institution.getId()); links.add(user.getId()); links.add(project.getId()); place.setAppContext(new AppContext(actor, links)); goTo(place); } }; // Make the call to the stock price service. DBInitService.Util.getInstance().initMethod(callback); } /* @Override public String mayStop() { return "Please hold on. This activity is stopping."; } */ /** * @see SampleView.Presenter#goTo(Place) */ @Override public void goTo(Place place) { clientFactory.getPlaceController().goTo(place); } }