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.ui; import com.vaadin.event.ConnectorEventListener; import com.vaadin.server.PaintException; import com.vaadin.server.PaintTarget; import com.vaadin.server.VariableOwner; /** * Interface provided to ease porting of Vaadin 6 components to Vaadin 7. By * implementing this interface your Component will be able to use * {@link #paintContent(PaintTarget)} and * {@link #changeVariables(Object, java.util.Map)} just like in Vaadin 6. * * @deprecated As of 7.0. This class is only intended to ease migration and * should not be used for new projects. * * @author Vaadin Ltd * @since 7.0.0 */ @Deprecated public interface LegacyComponent extends VariableOwner, Component, ConnectorEventListener { /** * <p> * Paints the Paintable into a UIDL stream. This method creates the UIDL * sequence describing it and outputs it to the given UIDL stream. * </p> * * <p> * It is called when the contents of the component should be painted in * response to the component first being shown or having been altered so * that its visual representation is changed. * </p> * * @param target * the target UIDL stream where the component should paint itself * to. * @throws PaintException * if the paint operation failed. */ public void paintContent(PaintTarget target) throws PaintException; /** * (non-Javadoc) {@inheritDoc} * <p> * For a LegacyComponent, markAsDirty will also cause * {@link #paintContent(PaintTarget)} to be called before sending changes to * the client. * * @see com.vaadin.server.ClientConnector#markAsDirty() */ @Override public void markAsDirty(); }