Java tutorial
package com.mcparland.john.vaadin_mvn_arch.samples; /* * #%L * vaadin_mvn_arch-widgetset * %% * Copyright (C) 2014 John McParland * %% * 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. * #L% */ import com.vaadin.shared.JavaScriptExtensionState; import java.util.HashMap; /** * Shared state class for {@link AttributeExtension} communication from server * to client. */ public class AttributeExtensionState extends JavaScriptExtensionState { /** * The serialVersionUID. */ private static final long serialVersionUID = 1L; public HashMap<String, String> attributes = new HashMap<String, String>(); }