java.beans

Class SimpleBeanInfo

Implemented Interfaces:
BeanInfo

public class SimpleBeanInfo
extends Object
implements BeanInfo

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).

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.

See the BeanInfo class for information on what the various methods actually do.

Since:
JDK1.1
See Also:
BeanInfo

Fields inherited from interface java.beans.BeanInfo

ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, ICON_MONO_32x32

Method Summary

BeanInfo[]
getAdditionalBeanInfo()
Tell the Introspector to go look for other BeanInfo itself.
BeanDescriptor
getBeanDescriptor()
Force Introspection of the general bean info.
int
getDefaultEventIndex()
Say that there is no "default" event set.
int
getDefaultPropertyIndex()
Say that there is no "default" property.
EventSetDescriptor[]
getEventSetDescriptors()
Force Introspection of the events this Bean type fires.
Image
getIcon(int iconType)
Say that this Bean has no icons.
MethodDescriptor[]
getMethodDescriptors()
Force Introspection of the Bean's methods.
PropertyDescriptor[]
getPropertyDescriptors()
Force Introspection of the Bean properties.
Image
loadImage(String location)
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).

Methods inherited from class java.lang.Object

clone, equals, extends Object> getClass, finalize, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getAdditionalBeanInfo

public BeanInfo[] getAdditionalBeanInfo()
Tell the Introspector to go look for other BeanInfo itself.
Specified by:
getAdditionalBeanInfo in interface BeanInfo
Returns:
null.

getBeanDescriptor

public BeanDescriptor getBeanDescriptor()
Force Introspection of the general bean info.
Specified by:
getBeanDescriptor in interface BeanInfo
Returns:
null.

getDefaultEventIndex

public int getDefaultEventIndex()
Say that there is no "default" event set.
Specified by:
getDefaultEventIndex in interface BeanInfo
Returns:
-1.

getDefaultPropertyIndex

public int getDefaultPropertyIndex()
Say that there is no "default" property.
Specified by:
getDefaultPropertyIndex in interface BeanInfo
Returns:
-1.

getEventSetDescriptors

public EventSetDescriptor[] getEventSetDescriptors()
Force Introspection of the events this Bean type fires.
Specified by:
getEventSetDescriptors in interface BeanInfo
Returns:
null

getIcon

public Image getIcon(int iconType)
Say that this Bean has no icons.
Specified by:
getIcon in interface BeanInfo
Parameters:
iconType - the type of icon
Returns:
null.

getMethodDescriptors

public MethodDescriptor[] getMethodDescriptors()
Force Introspection of the Bean's methods.
Specified by:
getMethodDescriptors in interface BeanInfo
Returns:
null.

getPropertyDescriptors

public PropertyDescriptor[] getPropertyDescriptors()
Force Introspection of the Bean properties.
Specified by:
getPropertyDescriptors in interface BeanInfo
Returns:
null.

loadImage

public Image loadImage(String location)
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.
Parameters:
location - the URL relative
Returns:
the Image in question (possibly null).

java.beans.SimpleBeanInfo Copyright (C) 1998, 2006, 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.