TextEvent (Java Platform SE 8 ) (original) (raw)

• java.lang.Object

• • java.util.EventObject
  • • java.awt.AWTEvent
      • • java.awt.event.TextEvent

• All Implemented Interfaces:
  Serializable

public class TextEvent
extends AWTEvent
A semantic event which indicates that an object's text changed. This high-level event is generated by an object (such as a TextComponent) when its text changes. The event is passed to every TextListener object which registered to receive such events using the component's addTextListener method.
The object that implements the TextListener interface gets this TextEvent when the event occurs. The listener is spared the details of processing individual mouse movements and key strokes Instead, it can process a "meaningful" (semantic) event like "text changed".
An unspecified behavior will be caused if the id parameter of any particular TextEvent instance is not in the range from TEXT_FIRST to TEXT_LAST.
Since:
1.1
See Also:
TextComponent, TextListener, Serialized Form

• • Field Summary

  Fields

  Modifier and Type	Field	Description
  static int	TEXT_FIRST	The first number in the range of ids used for text events.
  static int	TEXT_LAST	The last number in the range of ids used for text events.
  static int	TEXT_VALUE_CHANGED	This event id indicates that object's text changed.

     * ### Fields inherited from class java.awt.[AWTEvent](../../../java/awt/AWTEvent.html "class in java.awt")  
     `[ACTION_EVENT_MASK](../../../java/awt/AWTEvent.html#ACTION%5FEVENT%5FMASK), [ADJUSTMENT_EVENT_MASK](../../../java/awt/AWTEvent.html#ADJUSTMENT%5FEVENT%5FMASK), [COMPONENT_EVENT_MASK](../../../java/awt/AWTEvent.html#COMPONENT%5FEVENT%5FMASK), [consumed](../../../java/awt/AWTEvent.html#consumed), [CONTAINER_EVENT_MASK](../../../java/awt/AWTEvent.html#CONTAINER%5FEVENT%5FMASK), [FOCUS_EVENT_MASK](../../../java/awt/AWTEvent.html#FOCUS%5FEVENT%5FMASK), [HIERARCHY_BOUNDS_EVENT_MASK](../../../java/awt/AWTEvent.html#HIERARCHY%5FBOUNDS%5FEVENT%5FMASK), [HIERARCHY_EVENT_MASK](../../../java/awt/AWTEvent.html#HIERARCHY%5FEVENT%5FMASK), [id](../../../java/awt/AWTEvent.html#id), [INPUT_METHOD_EVENT_MASK](../../../java/awt/AWTEvent.html#INPUT%5FMETHOD%5FEVENT%5FMASK), [INVOCATION_EVENT_MASK](../../../java/awt/AWTEvent.html#INVOCATION%5FEVENT%5FMASK), [ITEM_EVENT_MASK](../../../java/awt/AWTEvent.html#ITEM%5FEVENT%5FMASK), [KEY_EVENT_MASK](../../../java/awt/AWTEvent.html#KEY%5FEVENT%5FMASK), [MOUSE_EVENT_MASK](../../../java/awt/AWTEvent.html#MOUSE%5FEVENT%5FMASK), [MOUSE_MOTION_EVENT_MASK](../../../java/awt/AWTEvent.html#MOUSE%5FMOTION%5FEVENT%5FMASK), [MOUSE_WHEEL_EVENT_MASK](../../../java/awt/AWTEvent.html#MOUSE%5FWHEEL%5FEVENT%5FMASK), [PAINT_EVENT_MASK](../../../java/awt/AWTEvent.html#PAINT%5FEVENT%5FMASK), [RESERVED_ID_MAX](../../../java/awt/AWTEvent.html#RESERVED%5FID%5FMAX), [TEXT_EVENT_MASK](../../../java/awt/AWTEvent.html#TEXT%5FEVENT%5FMASK), [WINDOW_EVENT_MASK](../../../java/awt/AWTEvent.html#WINDOW%5FEVENT%5FMASK), [WINDOW_FOCUS_EVENT_MASK](../../../java/awt/AWTEvent.html#WINDOW%5FFOCUS%5FEVENT%5FMASK), [WINDOW_STATE_EVENT_MASK](../../../java/awt/AWTEvent.html#WINDOW%5FSTATE%5FEVENT%5FMASK)`  
     * ### Fields inherited from class java.util.[EventObject](../../../java/util/EventObject.html "class in java.util")  
     `[source](../../../java/util/EventObject.html#source)`  

  • Constructor Summary

  Constructors

  Constructor	Description
  TextEvent(Object source, int id)	Constructs a TextEvent object.

  • Method Summary

  All Methods Instance Methods Concrete Methods

  Modifier and Type	Method	Description
  String	paramString()	Returns a parameter string identifying this text event.

     * ### Methods inherited from class java.awt.[AWTEvent](../../../java/awt/AWTEvent.html "class in java.awt")  
     `[consume](../../../java/awt/AWTEvent.html#consume--), [getID](../../../java/awt/AWTEvent.html#getID--), [isConsumed](../../../java/awt/AWTEvent.html#isConsumed--), [setSource](../../../java/awt/AWTEvent.html#setSource-java.lang.Object-), [toString](../../../java/awt/AWTEvent.html#toString--)`  
     * ### Methods inherited from class java.util.[EventObject](../../../java/util/EventObject.html "class in java.util")  
     `[getSource](../../../java/util/EventObject.html#getSource--)`  
     * ### Methods inherited from class java.lang.[Object](../../../java/lang/Object.html "class in java.lang")  
     `[clone](../../../java/lang/Object.html#clone--), [equals](../../../java/lang/Object.html#equals-java.lang.Object-), [finalize](../../../java/lang/Object.html#finalize--), [getClass](../../../java/lang/Object.html#getClass--), [hashCode](../../../java/lang/Object.html#hashCode--), [notify](../../../java/lang/Object.html#notify--), [notifyAll](../../../java/lang/Object.html#notifyAll--), [wait](../../../java/lang/Object.html#wait--), [wait](../../../java/lang/Object.html#wait-long-), [wait](../../../java/lang/Object.html#wait-long-int-)`

• • Field Detail

     * #### TEXT\_FIRST  
     public static final int TEXT_FIRST  
     The first number in the range of ids used for text events.  
     See Also:  
     [Constant Field Values](../../../constant-values.html#java.awt.event.TextEvent.TEXT%5FFIRST)  
     * #### TEXT\_LAST  
     public static final int TEXT_LAST  
     The last number in the range of ids used for text events.  
     See Also:  
     [Constant Field Values](../../../constant-values.html#java.awt.event.TextEvent.TEXT%5FLAST)  
     * #### TEXT\_VALUE\_CHANGED  
     public static final int TEXT_VALUE_CHANGED  
     This event id indicates that object's text changed.  
     See Also:  
     [Constant Field Values](../../../constant-values.html#java.awt.event.TextEvent.TEXT%5FVALUE%5FCHANGED)  

  • Constructor Detail

    * #### TextEvent  
    public TextEvent([Object](../../../java/lang/Object.html "class in java.lang") source,  
                     int id)  
    Constructs a `TextEvent` object.  
     This method throws an`IllegalArgumentException` if `source` is `null`.  
    Parameters:  
    `source` \- The (`TextComponent`) object that originated the event  
    `id` \- An integer that identifies the event type. For information on allowable values, see the class description for [TextEvent](../../../java/awt/event/TextEvent.html "class in java.awt.event")  
    Throws:  
    `[IllegalArgumentException](../../../java/lang/IllegalArgumentException.html "class in java.lang")` \- if `source` is null  
    See Also:  
    [EventObject.getSource()](../../../java/util/EventObject.html#getSource--), [AWTEvent.getID()](../../../java/awt/AWTEvent.html#getID--)  

  • Method Detail

    * #### paramString  
    public [String](../../../java/lang/String.html "class in java.lang") paramString()  
    Returns a parameter string identifying this text event. This method is useful for event-logging and for debugging.  
    Overrides:  
    `[paramString](../../../java/awt/AWTEvent.html#paramString--)` in class `[AWTEvent](../../../java/awt/AWTEvent.html "class in java.awt")`  
    Returns:  
    a string identifying the event and its attributes

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