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EventListenerProxy
public
abstract
class
EventListenerProxy
extends Object
implements
EventListener
Known direct subclasses
| PropertyChangeListenerProxy |
A class which extends the EventListenerProxy
specifically for adding a PropertyChangeListener
with a "bound" property.
|
|
An abstract wrapper class for an EventListener class
which associates a set of additional parameters with the listener.
Subclasses must provide the storage and accessor methods
for the additional arguments or parameters.
For example, a bean which supports named properties
would have a two argument method signature for adding
a PropertyChangeListener for a property:
public void addPropertyChangeListener(String propertyName,
PropertyChangeListener listener)
If the bean also implemented the zero argument get listener method:
public PropertyChangeListener[] getPropertyChangeListeners()
then the array may contain inner
PropertyChangeListeners
which are also
PropertyChangeListenerProxy objects.
If the calling method is interested in retrieving the named property
then it would have to test the element to see if it is a proxy class.
Summary
Public constructors |
|---|
EventListenerProxy(T listener)
Creates a proxy for the specified listener.
|
Public methods |
|---|
T
|
getListener()
Returns the listener associated with the proxy.
|
Inherited methods |
|---|
From class
java.lang.Object
Object
|
clone()
Creates and returns a copy of this object.
|
boolean
|
equals(Object obj)
Indicates whether some other object is "equal to" this one.
|
void
|
finalize()
Called by the garbage collector on an object when garbage collection
determines that there are no more references to the object.
|
final
Class<?>
|
getClass()
Returns the runtime class of this Object.
|
int
|
hashCode()
Returns a hash code value for the object.
|
final
void
|
notify()
Wakes up a single thread that is waiting on this object's
monitor.
|
final
void
|
notifyAll()
Wakes up all threads that are waiting on this object's monitor.
|
String
|
toString()
Returns a string representation of the object.
|
final
void
|
wait(long timeoutMillis, int nanos)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait(long timeoutMillis)
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted, or until a
certain amount of real time has elapsed.
|
final
void
|
wait()
Causes the current thread to wait until it is awakened, typically
by being notified or interrupted.
|
|
Public constructors
EventListenerProxy
public EventListenerProxy (T listener)
Creates a proxy for the specified listener.
| Parameters |
|---|
listener |
T: the listener object |
Public methods
getListener
public T getListener ()
Returns the listener associated with the proxy.
| Returns |
|---|
T |
the listener associated with the proxy |
Content and code samples on this page are subject to the licenses described in the Content License. Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
Last updated 2025-02-10 UTC.
[null,null,["Last updated 2025-02-10 UTC."],[],[],null,["# EventListenerProxy\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \nSummary: [Ctors](#pubctors) \\| [Methods](#pubmethods) \\| [Inherited Methods](#inhmethods) \n\nEventListenerProxy\n==================\n\n\n`\npublic\n\n\nabstract\nclass\nEventListenerProxy\n`\n\n\n`\n\nextends `[Object](/reference/java/lang/Object)`\n\n\n`\n\n`\n\n\nimplements\n\n`[EventListener](/reference/java/util/EventListener)`\n\n\n`\n\n|---|---------------------------------------------------------------------------------------------------------|\n| [java.lang.Object](/reference/java/lang/Object) ||\n| ↳ | java.util.EventListenerProxy\\\u003cT extends [java.util.EventListener](/reference/java/util/EventListener)\\\u003e |\n\n|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Known direct subclasses [PropertyChangeListenerProxy](/reference/java/beans/PropertyChangeListenerProxy) |----------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------| | [PropertyChangeListenerProxy](/reference/java/beans/PropertyChangeListenerProxy) | A class which extends the `EventListenerProxy` specifically for adding a `PropertyChangeListener` with a \"bound\" property. | |\n\n\u003cbr /\u003e\n\n*** ** * ** ***\n\nAn abstract wrapper class for an `EventListener` class\nwhich associates a set of additional parameters with the listener.\nSubclasses must provide the storage and accessor methods\nfor the additional arguments or parameters.\n\n\nFor example, a bean which supports named properties\nwould have a two argument method signature for adding\na `PropertyChangeListener` for a property: \n\n```\n public void addPropertyChangeListener(String propertyName,\n PropertyChangeListener listener)\n \n```\nIf the bean also implemented the zero argument get listener method: \n\n```\n public PropertyChangeListener[] getPropertyChangeListeners()\n \n```\nthen the array may contain inner `PropertyChangeListeners` which are also `PropertyChangeListenerProxy` objects.\n\n\nIf the calling method is interested in retrieving the named property\nthen it would have to test the element to see if it is a proxy class.\n\nSummary\n-------\n\n| ### Public constructors ||\n|---------------------------------------------------------------------------------------------------------------------------------------------------|---|\n| ` `[EventListenerProxy](/reference/java/util/EventListenerProxy#EventListenerProxy(T))`(T listener) ` Creates a proxy for the specified listener. |\n\n| ### Public methods ||\n|------|------------------------------------------------------------------------------------------------------------------------------|\n| ` T` | ` `[getListener](/reference/java/util/EventListenerProxy#getListener())`() ` Returns the listener associated with the proxy. |\n\n| ### Inherited methods |\n|-----------------------|---|\n| From class ` `[java.lang.Object](/reference/java/lang/Object)` ` |---------------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | ` `[Object](/reference/java/lang/Object) | ` `[clone](/reference/java/lang/Object#clone())`() ` Creates and returns a copy of this object. | | ` boolean` | ` `[equals](/reference/java/lang/Object#equals(java.lang.Object))`(`[Object](/reference/java/lang/Object)` obj) ` Indicates whether some other object is \"equal to\" this one. | | ` void` | ` `[finalize](/reference/java/lang/Object#finalize())`() ` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. | | ` final `[Class](/reference/java/lang/Class)`\u003c?\u003e` | ` `[getClass](/reference/java/lang/Object#getClass())`() ` Returns the runtime class of this `Object`. | | ` int` | ` `[hashCode](/reference/java/lang/Object#hashCode())`() ` Returns a hash code value for the object. | | ` final void` | ` `[notify](/reference/java/lang/Object#notify())`() ` Wakes up a single thread that is waiting on this object's monitor. | | ` final void` | ` `[notifyAll](/reference/java/lang/Object#notifyAll())`() ` Wakes up all threads that are waiting on this object's monitor. | | ` `[String](/reference/java/lang/String) | ` `[toString](/reference/java/lang/Object#toString())`() ` Returns a string representation of the object. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long,%20int))`(long timeoutMillis, int nanos) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait(long))`(long timeoutMillis) ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed. | | ` final void` | ` `[wait](/reference/java/lang/Object#wait())`() ` Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*. | ||\n\nPublic constructors\n-------------------\n\n### EventListenerProxy\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic EventListenerProxy (T listener)\n```\n\nCreates a proxy for the specified listener.\n\n\u003cbr /\u003e\n\n| Parameters ||\n|------------|---------------------------------|\n| `listener` | `T`: the listener object \u003cbr /\u003e |\n\nPublic methods\n--------------\n\n### getListener\n\nAdded in [API level 1](/guide/topics/manifest/uses-sdk-element#ApiLevels) \n\n```\npublic T getListener ()\n```\n\nReturns the listener associated with the proxy.\n\n\u003cbr /\u003e\n\n| Returns ||\n|-----|-----------------------------------------------|\n| `T` | the listener associated with the proxy \u003cbr /\u003e |"]]
