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nextapp.echo.event
Class HierarchyEvent  

java.lang.Object
  java.util.EventObject
      nextapp.echo.event.HierarchyEvent

All Implemented Interfaces:

java.io.Serializable

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public class HierarchyEvent

extends java.util.EventObject

An event describing a change to the component hierarchy.

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Field Summary
private  nextapp.echo.Component	changed
private  nextapp.echo.Component	changedParent
private  long	changeFlags
private  nextapp.echo.Component	component
static int	PARENT_CHANGED
static int	REGISTRATION_CHANGED
static int	SHOWING_CHANGED

 

Fields inherited from class java.util.EventObject

source

 

Constructor Summary

HierarchyEvent(nextapp.echo.Component source, long changeFlags, nextapp.echo.Component changed, nextapp.echo.Component changedParent)           Creates a new HierarchyEvent

 

Method Summary
nextapp.echo.Component	getChanged()           Returns the component whose state within the hierarchy changed.
nextapp.echo.Component	getChangedParent()           Returns the parent (or former parent) of the component whose state within the hierarchy changed.
long	getChangeFlags()           Returns a bitmask describing the change to the heirarchy.
nextapp.echo.Component	getComponent()           Returns the component which generated this event.
boolean	isParentChanged()           Returns true if the Component's parent has changed.
boolean	isRegistrationChanged()           Returns true if the Component's registration state has changed.
boolean	isShowingChanged()           Returns true if the Component's showing state has changed.

 

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

SHOWING_CHANGED

public static final int SHOWING_CHANGED

See Also:

Constant Field Values

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PARENT_CHANGED

public static final int PARENT_CHANGED

See Also:

Constant Field Values

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REGISTRATION_CHANGED

public static final int REGISTRATION_CHANGED

See Also:

Constant Field Values

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changeFlags

private long changeFlags

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changed

private nextapp.echo.Component changed

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changedParent

private nextapp.echo.Component changedParent

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component

private nextapp.echo.Component component

Constructor Detail

HierarchyEvent

public HierarchyEvent(nextapp.echo.Component source,
                      long changeFlags,
                      nextapp.echo.Component changed,
                      nextapp.echo.Component changedParent)

Creates a new HierarchyEvent

Method Detail

getChangeFlags

public long getChangeFlags()

Returns a bitmask describing the change to the heirarchy.

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getChanged

public nextapp.echo.Component getChanged()

Returns the component whose state within the hierarchy changed.

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getChangedParent

public nextapp.echo.Component getChangedParent()

Returns the parent (or former parent) of the component whose state within the hierarchy changed.

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getComponent

public nextapp.echo.Component getComponent()

Returns the component which generated this event.

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isParentChanged

public boolean isParentChanged()

Returns true if the Component's parent has changed.

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isRegistrationChanged

public boolean isRegistrationChanged()

Returns true if the Component's registration state has changed.

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isShowingChanged

public boolean isShowingChanged()

Returns true if the Component's showing state has changed.

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