java.beans
Class SimpleBeanInfo
- java.lang.Object
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- java.beans.SimpleBeanInfo
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- 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.
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Field Summary
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Fields inherited from interface java.beans.BeanInfo
ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, ICON_MONO_32x32
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Constructor Summary
Constructors Constructor and Description SimpleBeanInfo()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description BeanInfo[]getAdditionalBeanInfo()Claim there are no other relevant BeanInfo objects.BeanDescriptorgetBeanDescriptor()Deny knowledge about the class and customizer of the bean.intgetDefaultEventIndex()Deny knowledge of a default event.intgetDefaultPropertyIndex()Deny knowledge of a default property.EventSetDescriptor[]getEventSetDescriptors()Deny knowledge of event sets.ImagegetIcon(int iconKind)Claim there are no icons available.MethodDescriptor[]getMethodDescriptors()Deny knowledge of methods.PropertyDescriptor[]getPropertyDescriptors()Deny knowledge of properties.ImageloadImage(String resourceName)This is a utility method to help in loading icon images.
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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:
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getBeanDescriptorin interfaceBeanInfo - Returns:
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a
BeanDescriptorobject, ornullif 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:
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getPropertyDescriptorsin interfaceBeanInfo - Returns:
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an array of
PropertyDescriptorobjects, ornullif 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:
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getDefaultPropertyIndexin interfaceBeanInfo - Returns:
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index of the default property in the
PropertyDescriptorarray returned by thegetPropertyDescriptorsmethod, 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:
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getEventSetDescriptorsin interfaceBeanInfo - Returns:
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an array of
EventSetDescriptorobjects, ornullif 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:
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getDefaultEventIndexin interfaceBeanInfo - Returns:
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index of the default event in the
EventSetDescriptorarray returned by thegetEventSetDescriptorsmethod, 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:
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getMethodDescriptorsin interfaceBeanInfo - Returns:
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an array of
MethodDescriptorobjects, ornullif 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:
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getAdditionalBeanInfoin interfaceBeanInfo - Returns:
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an array of
BeanInfoobjects, ornullif there are no additionalBeanInfoobjects
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:
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getIconin interfaceBeanInfo - Parameters:
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iconKind- the kind of icon requested - Returns:
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an image object representing the requested icon, or
nullif no suitable icon is available - See Also:
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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:
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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.
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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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