Class SimpleBeanInfo
- java.lang.Object
-
- java.beans.SimpleBeanInfo
- All Implemented Interfaces:
BeanInfo
public class SimpleBeanInfo extends Object implements BeanInfo
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.
- Since:
- 1.1
Field Summary
Fields declared in interface java.beans.BeanInfo
ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, ICON_MONO_32x32
Constructor Summary
Constructor | Description |
---|---|
SimpleBeanInfo() |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
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. |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
SimpleBeanInfo
public SimpleBeanInfo()
Method Detail
getBeanDescriptor
public BeanDescriptor getBeanDescriptor()
Deny knowledge about the class and customizer of the bean. You can override this if you wish to provide explicit info.
- Specified by:
-
getBeanDescriptor
in interfaceBeanInfo
- Returns:
- a
BeanDescriptor
object, ornull
if the information is to be obtained through the automatic analysis
getPropertyDescriptors
public PropertyDescriptor[] getPropertyDescriptors()
Deny knowledge of properties. You can override this if you wish to provide explicit property info.
- Specified by:
-
getPropertyDescriptors
in interfaceBeanInfo
- Returns:
- an array of
PropertyDescriptor
objects, ornull
if the information is to be obtained through the automatic analysis
getDefaultPropertyIndex
public int getDefaultPropertyIndex()
Deny knowledge of a default property. You can override this if you wish to define a default property for the bean.
- Specified by:
-
getDefaultPropertyIndex
in interfaceBeanInfo
- Returns:
- index of the default property in the
PropertyDescriptor
array returned by thegetPropertyDescriptors
method, or -1 if there is no default property
getEventSetDescriptors
public EventSetDescriptor[] getEventSetDescriptors()
Deny knowledge of event sets. You can override this if you wish to provide explicit event set info.
- Specified by:
-
getEventSetDescriptors
in interfaceBeanInfo
- Returns:
- an array of
EventSetDescriptor
objects, ornull
if the information is to be obtained through the automatic analysis
getDefaultEventIndex
public int getDefaultEventIndex()
Deny knowledge of a default event. You can override this if you wish to define a default event for the bean.
- Specified by:
-
getDefaultEventIndex
in interfaceBeanInfo
- Returns:
- index of the default event in the
EventSetDescriptor
array returned by thegetEventSetDescriptors
method, or -1 if there is no default event
getMethodDescriptors
public MethodDescriptor[] getMethodDescriptors()
Deny knowledge of methods. You can override this if you wish to provide explicit method info.
- Specified by:
-
getMethodDescriptors
in interfaceBeanInfo
- Returns:
- an array of
MethodDescriptor
objects, ornull
if the information is to be obtained through the automatic analysis
getAdditionalBeanInfo
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.
- Specified by:
-
getAdditionalBeanInfo
in interfaceBeanInfo
- Returns:
- an array of
BeanInfo
objects, ornull
if there are no additionalBeanInfo
objects
getIcon
public Image getIcon(int iconKind)
Claim there are no icons available. You can override this if you want to provide icons for your bean.
- Specified by:
-
getIcon
in interfaceBeanInfo
- Parameters:
-
iconKind
- the kind of icon requested - Returns:
- an image object representing the requested icon, or
null
if no suitable icon is available - See Also:
-
BeanInfo.ICON_COLOR_16x16
,BeanInfo.ICON_COLOR_32x32
,BeanInfo.ICON_MONO_16x16
,BeanInfo.ICON_MONO_32x32
loadImage
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 or null if the resource is not found or the resource could not be loaded as an Image