public class

SimpleBeanInfo

extends Object
implements BeanInfo
java.lang.Object
   ↳ java.beans.SimpleBeanInfo
Known Direct Subclasses

Class Overview

This is a support class to make it easier for people to provide BeanInfo classes.

It defaults to providing "noop" information, and can be selectively overriden to provide more explicit information on chosen topics. When the introspector sees the "noop" values, it will apply low level introspection and design patterns to automatically analyze the target bean.

Summary

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Inherited Constants
From interface java.beans.BeanInfo
Public Constructors
SimpleBeanInfo()
Public Methods
BeanInfo[] getAdditionalBeanInfo()
Claim there are no other relevant BeanInfo objects.
BeanDescriptor getBeanDescriptor()
Deny knowledge about the class and customizer of the bean.
int getDefaultEventIndex()
Deny knowledge of a default event.
int getDefaultPropertyIndex()
Deny knowledge of a default property.
EventSetDescriptor[] getEventSetDescriptors()
Deny knowledge of event sets.
Image getIcon(int iconKind)
Claim there are no icons available.
MethodDescriptor[] getMethodDescriptors()
Deny knowledge of methods.
PropertyDescriptor[] getPropertyDescriptors()
Deny knowledge of properties.
Image loadImage(String resourceName)
This is a utility method to help in loading icon images.
[Expand]
Inherited Methods
From class java.lang.Object
From interface java.beans.BeanInfo

Public Constructors

public SimpleBeanInfo ()

Public Methods

public BeanInfo[] getAdditionalBeanInfo ()

Claim there are no other relevant BeanInfo objects. You may override this if you want to (for example) return a BeanInfo for a base class.

Returns
  • an array of BeanInfo objects. May return null.

public BeanDescriptor getBeanDescriptor ()

Deny knowledge about the class and customizer of the bean. You can override this if you wish to provide explicit info.

Returns
  • A BeanDescriptor providing overall information about the bean, such as its displayName, its customizer, etc. May return null if the information should be obtained by automatic analysis.

public int getDefaultEventIndex ()

Deny knowledge of a default event. You can override this if you wish to define a default event for the bean.

Returns
  • Index of default event in the EventSetDescriptor array returned by getEventSetDescriptors.

    Returns -1 if there is no default event.

public int getDefaultPropertyIndex ()

Deny knowledge of a default property. You can override this if you wish to define a default property for the bean.

Returns
  • Index of default property in the PropertyDescriptor array returned by getPropertyDescriptors.

    Returns -1 if there is no default property.

public EventSetDescriptor[] getEventSetDescriptors ()

Deny knowledge of event sets. You can override this if you wish to provide explicit event set info.

Returns
  • An array of EventSetDescriptors describing the kinds of events fired by this bean. May return null if the information should be obtained by automatic analysis.

public Image getIcon (int iconKind)

Claim there are no icons available. You can override this if you want to provide icons for your bean.

Parameters
iconKind The kind of icon requested. This should be one of the constant values ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, or ICON_MONO_32x32.
Returns
  • An image object representing the requested icon. May return null if no suitable icon is available.

public MethodDescriptor[] getMethodDescriptors ()

Deny knowledge of methods. You can override this if you wish to provide explicit method info.

Returns
  • An array of MethodDescriptors describing the externally visible methods supported by this bean. May return null if the information should be obtained by automatic analysis.

public PropertyDescriptor[] getPropertyDescriptors ()

Deny knowledge of properties. You can override this if you wish to provide explicit property info.

Returns
  • An array of PropertyDescriptors describing the editable properties supported by this bean. May return null if the information should be obtained by automatic analysis.

    If a property is indexed, then its entry in the result array will belong to the IndexedPropertyDescriptor subclass of PropertyDescriptor. A client of getPropertyDescriptors can use "instanceof" to check if a given PropertyDescriptor is an IndexedPropertyDescriptor.

public Image loadImage (String resourceName)

This is a utility method to help in loading icon images. It takes the name of a resource file associated with the current object's class file and loads an image object from that file. Typically images will be GIFs.

Parameters
resourceName A pathname relative to the directory holding the class file of the current class. For example, "wombat.gif".
Returns
  • an image object. May be null if the load failed.