javax.swing.event

## 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 class` | `HyperlinkEvent.EventType` | Defines the ENTERED, EXITED, and ACTIVATED event types, along with their string representations, returned by toString().

  - ### Field Summary

    - ### Fields inherited from class java.util.EventObject

      `source`

  - ### 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

    All Methods Instance Methods Concrete Methods
    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 inherited from class java.util.EventObject

      `getSource, toString`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

- - ### Constructor Detail

    - #### 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 Detail

    - #### 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.

    - #### 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 @{code null} was specified as the `InputEvent`, this returns `null`.
      Returns:
        InputEvent that triggered the hyperlink event, or null
      Since:
        1.7

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