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Class java.awt.event.TextEvent

java.lang.Object
    |
    +----java.util.EventObject
            |
            +----java.awt.AWTEvent
                    |
                    +----java.awt.event.TextEvent

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".

See Also:
TextComponent, TextListener, Tutorial: Writing a Text Listener, Reference: The Java Class Libraries (update file)

Field Summary
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
 ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK
 
Fields inherited from class java.util.EventObject
 source
 

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

Method Summary
String  paramString()
Returns a parameter string identifying this text event.
 
Methods inherited from class java.awt.AWTEvent
 consume, getID, isConsumed, paramString, toString
 
Methods inherited from class java.util.EventObject
 getSource, toString
 
Methods inherited from class java.lang.Object
 clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

TEXT_FIRST

public static final int TEXT_FIRST
The first number in the range of ids used for text events.

TEXT_LAST

public static final int TEXT_LAST
The last number in the range of ids used for text events.

TEXT_VALUE_CHANGED

public static final int TEXT_VALUE_CHANGED
This event id indicates that object's text changed.
Constructor Detail

TextEvent

public TextEvent(Object source,
                 int id)
Constructs a TextEvent object.
Parameters:
source - the (TextComponent) object that originated the event
id - an integer that identifies the event type
Method Detail

paramString

public String paramString()
Returns a parameter string identifying this text event. This method is useful for event-logging and for debugging.
Returns:
a string identifying the event and its attributes
Overrides:
paramString in class AWTEvent

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