Class ListDataEvent

java.lang.Object

java.util.EventObject

javax.swing.event.ListDataEvent

All Implemented Interfaces:

Serializable

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. As of 1.4, support for long term storage of all JavaBeans has been added to the java.beans package. Please see XMLEncoder.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	CONTENTS_CHANGED	Identifies one or more changes in the lists contents.
static final int	INTERVAL_ADDED	Identifies the addition of one or more contiguous items to the list
static final int	INTERVAL_REMOVED	Identifies the removal of one or more contiguous items from the list

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

Method Summary

Modifier and Type	Method	Description
int	getIndex0()	Returns the lower index of the range.
int	getIndex1()	Returns the upper index of the range.
int	getType()	Returns the event type.
String	toString()	Returns a string representation of this ListDataEvent.

Methods declared in class EventObject

getSource

Modifier and Type	Method	Description
Object	getSource()	The object on which the Event initially occurred.

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.

Field Details

CONTENTS_CHANGED

public static final int CONTENTS_CHANGED

Identifies one or more changes in the lists contents.

See Also:

• Constant Field Values

INTERVAL_ADDED

public static final int INTERVAL_ADDED

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

See Also:

• Constant Field Values

INTERVAL_REMOVED

public static final int INTERVAL_REMOVED

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

See Also:

• Constant Field Values

Constructor Details

ListDataEvent

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

Constructs a ListDataEvent object. If index0 is > index1, index0 and index1 will be swapped such that index0 will always be <= index1.

Parameters:

source - the source Object (typically this)

type - an int specifying CONTENTS_CHANGED, INTERVAL_ADDED, or INTERVAL_REMOVED

index0 - one end of the new interval

index1 - the other end of the new interval

Method Details

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

toString

public String toString()

Returns a string representation of this ListDataEvent. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.

Overrides:

toString in class EventObject

Returns:

a string representation of this ListDataEvent.

Since:

1.4