Java tutorial
/** * Copyright 2014-2016 CyberVision, 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 org.kaaproject.kaa.sandbox.web.client.mvp.activity; import org.kaaproject.kaa.sandbox.web.client.mvp.ClientFactory; import com.google.gwt.activity.shared.Activity; import com.google.gwt.activity.shared.ActivityMapper; import com.google.gwt.place.shared.Place; public class HeaderActivityMapper implements ActivityMapper { private final ClientFactory clientFactory; private HeaderActivity headerActivity; public HeaderActivityMapper(ClientFactory clientFactory) { super(); this.clientFactory = clientFactory; } @Override public Activity getActivity(Place place) { if (headerActivity == null) { headerActivity = new HeaderActivity(place, clientFactory); } else { headerActivity.setPlace(place); } return headerActivity; } }