All Implemented Interfaces:

Serializable

public class ItemEvent
extends AWTEvent 

Since:

1.1

See Also:

ItemSelectable, ItemListener, Tutorial: Writing an Item Listener, Serialized Form

• Field Summary

  Fields

  Modifier and Type	Field	Description
  static int	DESELECTED	This state-change-value indicates that a selected item was deselected.
  static int	ITEM_FIRST	The first number in the range of ids used for item events.
  static int	ITEM_LAST	The last number in the range of ids used for item events.
  static int	ITEM_STATE_CHANGED	This event id indicates that an item's state changed.
  static int	SELECTED	This state-change value indicates that an item was selected.

  • Fields inherited from class java.awt.AWTEvent

    ACTION_EVENT_MASK, ADJUSTMENT_EVENT_MASK, COMPONENT_EVENT_MASK, consumed, CONTAINER_EVENT_MASK, FOCUS_EVENT_MASK, HIERARCHY_BOUNDS_EVENT_MASK, HIERARCHY_EVENT_MASK, id, INPUT_METHOD_EVENT_MASK, INVOCATION_EVENT_MASK, ITEM_EVENT_MASK, KEY_EVENT_MASK, MOUSE_EVENT_MASK, MOUSE_MOTION_EVENT_MASK, MOUSE_WHEEL_EVENT_MASK, PAINT_EVENT_MASK, RESERVED_ID_MAX, TEXT_EVENT_MASK, WINDOW_EVENT_MASK, WINDOW_FOCUS_EVENT_MASK, WINDOW_STATE_EVENT_MASK

  • Fields inherited from class java.util.EventObject

    source

• Constructor Summary

  Constructors

  Constructor	Description
  ItemEvent (ItemSelectable source, int id, Object item, int stateChange)	Constructs an ItemEvent object.

• Method Summary

  All Methods

  Modifier and Type	Method	Description
  Object	getItem ()	Returns the item affected by the event.
  ItemSelectable	getItemSelectable ()	Returns the originator of the event.
  int	getStateChange ()	Returns the type of state change (selected or deselected).
  String	paramString ()	Returns a parameter string identifying this item event.

  • Methods inherited from class java.awt.AWTEvent

    consume, getID, isConsumed, setSource, toString

  • Methods inherited from class java.util.EventObject

    getSource

  • Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

• Field Detail

  • ITEM_FIRST

    public static final int ITEM_FIRST

    The first number in the range of ids used for item events.

    See Also:

    Constant Field Values

  • ITEM_LAST

    public static final int ITEM_LAST

    The last number in the range of ids used for item events.

    See Also:

    Constant Field Values

  • ITEM_STATE_CHANGED

    public static final int ITEM_STATE_CHANGED

    This event id indicates that an item's state changed.

    See Also:

    Constant Field Values

  • SELECTED

    public static final int SELECTED

    This state-change value indicates that an item was selected.

    See Also:

    Constant Field Values

  • DESELECTED

    public static final int DESELECTED

    This state-change-value indicates that a selected item was deselected.

    See Also:

    Constant Field Values

• Constructor Detail

  • ItemEvent

    public ItemEvent(ItemSelectable source,
     int id,
     Object item,
     int stateChange)

    Constructs an ItemEvent object.

    This method throws an IllegalArgumentException if source is null.

    Parameters:

    source - The ItemSelectable object that originated the event

    id - The integer that identifies the event type. For information on allowable values, see the class description for ItemEvent

    item - An object -- the item affected by the event

    stateChange - An integer that indicates whether the item was selected or deselected. For information on allowable values, see the class description for ItemEvent

    Throws:

    IllegalArgumentException - if source is null

    See Also:

    getItemSelectable(), AWTEvent.getID(), getStateChange()

• Method Detail

  • getItemSelectable

    public ItemSelectable getItemSelectable()

    Returns the originator of the event.

    Returns:

    the ItemSelectable object that originated the event.

  • getItem

    public Object getItem()

    Returns the item affected by the event.

    Returns:

    the item (object) that was affected by the event

  • getStateChange

    public int getStateChange()

    Returns the type of state change (selected or deselected).

    Returns:

    an integer that indicates whether the item was selected or deselected

    See Also:

    SELECTED, DESELECTED

  • paramString

    public String paramString()

    Returns a parameter string identifying this item event. This method is useful for event-logging and for debugging.

    Overrides:

    paramString in class AWTEvent

    Returns:

    a string identifying the event and its attributes