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 overridden 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 BeanInfo

    ICON_COLOR_16x16, ICON_COLOR_32x32, ICON_MONO_16x16, ICON_MONO_32x32
    Modifier and Type
    Field
    Description
    static final int
    ICON_COLOR_16x16
    Constant to indicate a 16 x 16 color icon.
    static final int
    ICON_COLOR_32x32
    Constant to indicate a 32 x 32 color icon.
    static final int
    ICON_MONO_16x16
    Constant to indicate a 16 x 16 monochrome icon.
    static final int
    ICON_MONO_32x32
    Constant to indicate a 32 x 32 monochrome icon.

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimpleBeanInfo()
    Constructs a 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 Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

  • Constructor Details

    • SimpleBeanInfo

      public SimpleBeanInfo()
      Constructs a SimpleBeanInfo.

  • Method Details

    • 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 interface BeanInfo
      Returns:
      a BeanDescriptor object, or null 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 interface BeanInfo
      Returns:
      an array of PropertyDescriptor objects, or null 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 interface BeanInfo
      Returns:
      index of the default property in the PropertyDescriptor array returned by the getPropertyDescriptors 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 interface BeanInfo
      Returns:
      an array of EventSetDescriptor objects, or null 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 interface BeanInfo
      Returns:
      index of the default event in the EventSetDescriptor array returned by the getEventSetDescriptors 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 interface BeanInfo
      Returns:
      an array of MethodDescriptor objects, or null 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 interface BeanInfo
      Returns:
      an array of BeanInfo objects, or null if there are no additional BeanInfo 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 interface BeanInfo
      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:

    • 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