org.zaval.data.event
Class TreeEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--org.zaval.util.event.EvObject
              |
              +--org.zaval.data.event.TreeEvent

All Implemented Interfaces:

java.io.Serializable

public class TreeEvent

extends EvObject

This class describes event that is performed by TreeModel class implementation. Using the event class the tree model notifies listeners about the structure changes.

See Also:

Serialized Form

Field Summary

static int	INSERTED The item inserted event type.
static int	MODIFIED The item modified event type.
static int	REMOVED The item removed event type.

Fields inherited from class java.util.EventObject

source

Constructor Summary

TreeEvent(java.lang.Object src, int id, Item item)
Constructs a new tree model event with the given source, event id and item.

Method Summary

protected boolean	checkID(int id) The method returns true if the specified id is valid for the event, otherwise returns false.
Item	getItem() Gets the item that has been modified, inserted or added.

Methods inherited from class org.zaval.util.event.EvObject

getID

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

INSERTED

public static final int INSERTED

The item inserted event type.

REMOVED

public static final int REMOVED

The item removed event type.

MODIFIED

public static final int MODIFIED

The item modified event type.

Constructor Detail

TreeEvent

public TreeEvent(java.lang.Object src,
                 int id,
                 Item item)

Constructs a new tree model event with the given source, event id and item. The event id defines type of the event and the item is an item that has been inserted, modified or removed.

Parameters:

src - the source of the event.

id - the type of the event.

item - the item.

Method Detail

getItem

public Item getItem()

Gets the item that has been modified, inserted or added.

Returns:

an item.

checkID

protected boolean checkID(int id)

Description copied from class: EvObject

The method returns true if the specified id is valid for the event, otherwise returns false. The method is called with the event constructor to test if the event id is valid and if the event is not valid the IllegalArgumentException will be thrown.

Overrides:

checkID in class EvObject

Following copied from class: org.zaval.util.event.EvObject

Parameters:

id - the specified id.