EventSetDescriptor

AI-generated Key Takeaways

• EventSetDescriptor provides information about a set of events that a Java Bean fires.

• It extends FeatureDescriptor and includes methods to access listener type, listener methods, and methods for adding/removing listeners.

• Multiple constructors allow for flexible initialization using class names, method names, or Method and MethodDescriptor objects.

• It provides methods to determine if the event set is unicast or part of the default event set, and to set these properties.

• EventSetDescriptor is used in JavaBeans introspection to discover and utilize event handling capabilities.

public class EventSetDescriptor extends FeatureDescriptor

Public Constructor Summary

	EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String listenerMethodName)
	EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName)
	EventSetDescriptor(Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName, String getListenerMethodName)
	EventSetDescriptor(String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod)
	EventSetDescriptor(String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod, Method getListenerMethod)
	EventSetDescriptor(String eventSetName, Class<?> listenerType, MethodDescriptor[] listenerMethodDescriptors, Method addListenerMethod, Method removeListenerMethod)

Public Method Summary

Method	getAddListenerMethod()
Method	getGetListenerMethod()
MethodDescriptor[]	getListenerMethodDescriptors()
Method[]	getListenerMethods()
Class<?>	getListenerType()
Method	getRemoveListenerMethod()
boolean	isInDefaultEventSet()
boolean	isUnicast()
void	setInDefaultEventSet(boolean inDefaultEventSet)
void	setUnicast(boolean unicast)

Inherited Method Summary

From class java.beans.FeatureDescriptor

Enumeration<String>	attributeNames() Enumerates the attribute names.
String	getDisplayName() Gets the display name or getName() if not set.
String	getName() Gets the name.
String	getShortDescription() Gets the short description or getDisplayName() if not set.
Object	getValue(String attributeName) Gets the value associated with the named attribute.
boolean	isExpert() Indicates if this feature is an expert feature.
boolean	isHidden() Indicates if this feature is hidden.
boolean	isPreferred() Indicates if this feature is preferred.
void	setDisplayName(String displayName) Sets the display name.
void	setExpert(boolean expert) Sets the expert indicator.
void	setHidden(boolean hidden) Sets the hidden indicator.
void	setName(String name) Sets the name.
void	setPreferred(boolean preferred) Sets the preferred indicator.
void	setShortDescription(String text) Sets the short description.
void	setValue(String attributeName, Object value) Sets the value for the named attribute.

From class java.lang.Object

Object	clone() Creates and returns a copy of this Object.
boolean	equals(Object obj) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of Class that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait(long timeout, int nanos) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait(long timeout) Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.
final void	wait() Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

Public Constructors

public EventSetDescriptor (Class<?> sourceClass, String eventSetName, Class<?> listenerType, String listenerMethodName)

Parameters

sourceClass
eventSetName
listenerType
listenerMethodName

Throws

IntrospectionException

public EventSetDescriptor (Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName)

Parameters

sourceClass
eventSetName
listenerType
listenerMethodNames
addListenerMethodName
removeListenerMethodName

Throws

IntrospectionException

public EventSetDescriptor (Class<?> sourceClass, String eventSetName, Class<?> listenerType, String[] listenerMethodNames, String addListenerMethodName, String removeListenerMethodName, String getListenerMethodName)

Parameters

sourceClass
eventSetName
listenerType
listenerMethodNames
addListenerMethodName
removeListenerMethodName
getListenerMethodName

Throws

IntrospectionException

public EventSetDescriptor (String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod)

Parameters

eventSetName
listenerType
listenerMethods
addListenerMethod
removeListenerMethod

Throws

IntrospectionException

public EventSetDescriptor (String eventSetName, Class<?> listenerType, Method[] listenerMethods, Method addListenerMethod, Method removeListenerMethod, Method getListenerMethod)

Parameters

eventSetName
listenerType
listenerMethods
addListenerMethod
removeListenerMethod
getListenerMethod

Throws

IntrospectionException

public EventSetDescriptor (String eventSetName, Class<?> listenerType, MethodDescriptor[] listenerMethodDescriptors, Method addListenerMethod, Method removeListenerMethod)

Parameters

eventSetName
listenerType
listenerMethodDescriptors
addListenerMethod
removeListenerMethod

Throws

IntrospectionException

Public Methods

public Method getAddListenerMethod ()

public Method getGetListenerMethod ()

public MethodDescriptor[] getListenerMethodDescriptors ()

public Method[] getListenerMethods ()

public Class<?> getListenerType ()

public Method getRemoveListenerMethod ()

public boolean isInDefaultEventSet ()

public boolean isUnicast ()

public void setInDefaultEventSet (boolean inDefaultEventSet)

Parameters

inDefaultEventSet

public void setUnicast (boolean unicast)

Parameters

unicast