Java tutorial
/* * Copyright 2000-2018 Vaadin Ltd. * * 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.vaadin.client.widget.grid.events; import com.google.gwt.event.shared.EventHandler; import com.vaadin.client.widgets.Grid.AbstractGridKeyEvent; /** * Base interface of all handlers for {@link AbstractGridKeyEvent}s. * * @since 7.4 * @author Vaadin Ltd */ public abstract interface AbstractGridKeyEventHandler extends EventHandler { public abstract interface GridKeyDownHandler extends AbstractGridKeyEventHandler { public void onKeyDown(GridKeyDownEvent event); } public abstract interface GridKeyUpHandler extends AbstractGridKeyEventHandler { public void onKeyUp(GridKeyUpEvent event); } public abstract interface GridKeyPressHandler extends AbstractGridKeyEventHandler { public void onKeyPress(GridKeyPressEvent event); } }