Class HyperlinkEvent

java.lang.Object

java.util.EventObject

javax.swing.event.HyperlinkEvent

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

HTMLFrameHyperlinkEvent

public class HyperlinkEvent
extends EventObject

HyperlinkEvent is used to notify interested parties that something has happened with respect to a hypertext link.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	HyperlinkEvent.EventType	Defines the ENTERED, EXITED, and ACTIVATED event types, along with their string representations, returned by toString().

Field Summary

Fields declared in class EventObject

source

Modifier and Type	Field	Description
protected Object	source	The object on which the Event initially occurred.

Constructor Summary

Constructors

Constructor	Description
HyperlinkEvent(Object source, HyperlinkEvent.EventType type, URL u)	Creates a new object representing a hypertext link event.
HyperlinkEvent(Object source, HyperlinkEvent.EventType type, URL u, String desc)	Creates a new object representing a hypertext link event.
HyperlinkEvent(Object source, HyperlinkEvent.EventType type, URL u, String desc, Element sourceElement)	Creates a new object representing a hypertext link event.
HyperlinkEvent(Object source, HyperlinkEvent.EventType type, URL u, String desc, Element sourceElement, InputEvent inputEvent)	Creates a new object representing a hypertext link event.

Method Summary

Modifier and Type	Method	Description
String	getDescription()	Get the description of the link as a string.
HyperlinkEvent.EventType	getEventType()	Gets the type of event.
InputEvent	getInputEvent()	Returns the InputEvent that triggered the hyperlink event.
Element	getSourceElement()	Returns the Element that corresponds to the source of the event.
URL	getURL()	Gets the URL that the link refers to.

Methods declared in class EventObject

getSource, toString

Modifier and Type	Method	Description
Object	getSource()	The object on which the Event initially occurred.
String	toString()	Returns a String representation of this EventObject.

Methods declared in class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, 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.
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

HyperlinkEvent

public HyperlinkEvent(Object source,
 HyperlinkEvent.EventType type,
 URL u)

Creates a new object representing a hypertext link event. The other constructor is preferred, as it provides more information if a URL could not be formed. This constructor is primarily for backward compatibility.

Parameters:

source - the object responsible for the event

type - the event type

u - the affected URL

HyperlinkEvent

public HyperlinkEvent(Object source,
 HyperlinkEvent.EventType type,
 URL u,
 String desc)

Creates a new object representing a hypertext link event.

Parameters:

source - the object responsible for the event

type - the event type

u - the affected URL. This may be null if a valid URL could not be created.

desc - the description of the link. This may be useful when attempting to form a URL resulted in a MalformedURLException. The description provides the text used when attempting to form the URL.

HyperlinkEvent

public HyperlinkEvent(Object source,
 HyperlinkEvent.EventType type,
 URL u,
 String desc,
 Element sourceElement)

Creates a new object representing a hypertext link event.

Parameters:

source - the object responsible for the event

type - the event type

u - the affected URL. This may be null if a valid URL could not be created.

desc - the description of the link. This may be useful when attempting to form a URL resulted in a MalformedURLException. The description provides the text used when attempting to form the URL.

sourceElement - Element in the Document representing the anchor

Since:

1.4

HyperlinkEvent

public HyperlinkEvent(Object source,
 HyperlinkEvent.EventType type,
 URL u,
 String desc,
 Element sourceElement,
 InputEvent inputEvent)

Creates a new object representing a hypertext link event.

Parameters:

source - the object responsible for the event

type - the event type

u - the affected URL. This may be null if a valid URL could not be created.

desc - the description of the link. This may be useful when attempting to form a URL resulted in a MalformedURLException. The description provides the text used when attempting to form the URL.

sourceElement - Element in the Document representing the anchor

inputEvent - InputEvent that triggered the hyperlink event

Since:

1.7

Method Details

getEventType

public HyperlinkEvent.EventType getEventType()

Gets the type of event.

Returns:

the type

getDescription

public String getDescription()

Get the description of the link as a string. This may be useful if a URL can't be formed from the description, in which case the associated URL would be null.

Returns:

the description of this link as a String

getURL

public URL getURL()

Gets the URL that the link refers to.

Returns:

the URL

getSourceElement

public Element getSourceElement()

Returns the Element that corresponds to the source of the event. This will typically be an Element representing an anchor. If a constructor that is used that does not specify a source Element, or null was specified as the source Element, this will return null.

Returns:

Element indicating source of event, or null

Since:

1.4

getInputEvent

public InputEvent getInputEvent()

Returns the InputEvent that triggered the hyperlink event. This will typically be a MouseEvent. If a constructor is used that does not specify an InputEvent, or null was specified as the InputEvent, this returns null.

Returns:

InputEvent that triggered the hyperlink event, or null

Since:

1.7