Java tutorial
/* * Copyright 2008 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.event.dom.client; import com.google.gwt.event.shared.HandlerRegistration; import com.google.gwt.event.shared.HasHandlers; /** * A widget that implements this interface provides registration for * {@link ChangeHandler} instances. */ public interface HasChangeHandlers extends HasHandlers { /** * Adds a {@link ChangeEvent} handler. * * @param handler the change handler * @return {@link HandlerRegistration} used to remove this handler */ HandlerRegistration addChangeHandler(ChangeHandler handler); }