| /* java.beans.SimpleBeanInfo |
| Copyright (C) 1998 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package java.beans; |
| |
| import java.awt.Image; |
| import java.awt.Toolkit; |
| |
| /** |
| ** SimpleBeanInfo is a class you may extend to more easily |
| ** provide select information to the Introspector. It |
| ** implements all of the methods in BeanInfo by returning |
| ** null and forces the Introspector to behave exactly as |
| ** if there were no BeanInfo class at all (Introspecting |
| ** everything).<P> |
| ** |
| ** Overriding one or two of these functions |
| ** to give explicit information on only those things you |
| ** wish to give explicit information is perfectly safe, |
| ** and even desirable.<P> |
| ** |
| ** See the BeanInfo class for information on what the |
| ** various methods actually do. |
| ** |
| ** @author John Keiser |
| ** @since JDK1.1 |
| ** @version 1.1.0, 29 Jul 1998 |
| ** @see java.beans.BeanInfo |
| **/ |
| |
| public class SimpleBeanInfo implements BeanInfo { |
| /** Force Introspection of the general bean info. |
| ** @return <CODE>null</CODE>. |
| **/ |
| public BeanDescriptor getBeanDescriptor() { |
| return null; |
| } |
| |
| /** Force Introspection of the events this Bean type |
| ** fires. |
| ** @return <CODE>null</CODE> |
| **/ |
| public EventSetDescriptor[] getEventSetDescriptors() { |
| return null; |
| } |
| |
| /** Say that there is no "default" event set. |
| ** @return <CODE>-1</CODE>. |
| **/ |
| public int getDefaultEventIndex() { |
| return -1; |
| } |
| |
| /** Force Introspection of the Bean properties. |
| ** @return <CODE>null</CODE>. |
| **/ |
| public PropertyDescriptor[] getPropertyDescriptors() { |
| return null; |
| } |
| |
| /** Say that there is no "default" property. |
| ** @return <CODE>-1</CODE>. |
| **/ |
| public int getDefaultPropertyIndex() { |
| return -1; |
| } |
| |
| /** Force Introspection of the Bean's methods. |
| ** @return <CODE>null</CODE>. |
| **/ |
| public MethodDescriptor[] getMethodDescriptors() { |
| return null; |
| } |
| |
| /** Tell the Introspector to go look for other BeanInfo |
| ** itself. |
| ** @return <CODE>null</CODE>. |
| **/ |
| public BeanInfo[] getAdditionalBeanInfo() { |
| return null; |
| } |
| |
| /** Say that this Bean has no icons. |
| ** @param iconType the type of icon |
| ** @return <CODE>null</CODE>. |
| **/ |
| public Image getIcon(int iconType) { |
| return null; |
| } |
| |
| /** Helper method to load an image using the Bean class |
| ** getResource() method on the BeanInfo class (using |
| ** getClass(), since you'll extend this class to get |
| ** the BeanInfo). Basically it's assumed that the Bean |
| ** and its BeanInfo are both loaded by the same |
| ** ClassLoader, generally a reasonable assumption. |
| ** @param location the URL relative |
| ** @return the Image in question. |
| **/ |
| public Image loadImage(String location) { |
| return Toolkit.getDefaultToolkit().getImage(getClass().getResource(location)); |
| } |
| } |
| |