Java(TM) 2 Platform, Standard Edition, v1.2.2 API Specification: Class ListDataEvent - JDK 5 Documentation v1.2.2, Java 2 SDK 英文文档

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javax.swing.event
Class ListDataEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--javax.swing.event.ListDataEvent

public class ListDataEvent
extends EventObject

Defines an event that encapsulates changes to a list.

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. A future release of Swing will provide support for long term persistence.

See Also:: Serialized Form

Field Summary

static int CONTENTS_CHANGED
          Identifies one or more changes in the lists contents.

static int INTERVAL_ADDED
          Identifies the addition of one or more contiguous items to the list

static int INTERVAL_REMOVED
          Identifies the removal of one or more contiguous items from the list

Fields inherited from class java.util.EventObject

source

Constructor Summary

ListDataEvent(Object source, int type, int index0, int index1)
          Constructs a ListDataEvent object.

Method Summary

int getIndex0()
          Returns the lower index of the range.

int getIndex1()
          Returns the upper index of the range.

int getType()
          Returns the event type.

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

Field Detail

CONTENTS_CHANGED

public static final int CONTENTS_CHANGED

Identifies one or more changes in the lists contents.

INTERVAL_ADDED

public static final int INTERVAL_ADDED

Identifies the addition of one or more contiguous items to the list

INTERVAL_REMOVED

public static final int INTERVAL_REMOVED

Identifies the removal of one or more contiguous items from the list

Constructor Detail

ListDataEvent

public ListDataEvent(Object source,
                     int type,
                     int index0,
                     int index1)

Constructs a ListDataEvent object.

Parameters:: source - the source Object (typically this); type - an int specifying CONTENTS_CHANGED, INTERVAL_ADDED, or INTERVAL_REMOVED; index0 - an int specifying the bottom of a range; index1 - an int specifying the top of a range

Method Detail

getType

public int getType()

Returns the event type. The possible values are:

CONTENTS_CHANGED
INTERVAL_ADDED
INTERVAL_REMOVED

Returns:: an int representing the type value

getIndex0

public int getIndex0()

Returns the lower index of the range. For a single element, this value is the same as that returned by getIndex1().

Returns:: an int representing the lower index value

getIndex1

public int getIndex1()

Returns the upper index of the range. For a single element, this value is the same as that returned by getIndex0().

Returns:: an int representing the upper index value