- java.lang.Object
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- java.util.EventObject
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- java.awt.AWTEvent
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- javax.swing.event.AncestorEvent
 
 
 
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- All Implemented Interfaces:
- Serializable
 
 public class AncestorEvent extends AWTEvent An event reported to a child component that originated from an ancestor in the component hierarchy.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.beanspackage. Please seeXMLEncoder.- See Also:
- Serialized Form
 
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Field SummaryFields Modifier and Type Field Description static intANCESTOR_ADDEDAn ancestor-component was added to the hierarchy of visible objects (made visible), and is currently being displayed.static intANCESTOR_MOVEDAn ancestor-component changed its position on the screen.static intANCESTOR_REMOVEDAn ancestor-component was removed from the hierarchy of visible objects (hidden) and is no longer being displayed.- 
Fields declared in class java.awt.AWTEventACTION_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
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Fields declared in class java.util.EventObjectsource
 
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Constructor SummaryConstructors Constructor Description AncestorEvent(JComponent source, int id, Container ancestor, Container ancestorParent)Constructs an AncestorEvent object to identify a change in an ancestor-component's display-status.
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Method SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description ContainergetAncestor()Returns the ancestor that the event actually occurred on.ContainergetAncestorParent()Returns the parent of the ancestor the event actually occurred on.JComponentgetComponent()Returns the component that the listener was added to.- 
Methods declared in class java.awt.AWTEventconsume, getID, isConsumed, paramString, setSource, toString
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Methods declared in class java.util.EventObjectgetSource
 
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Field Detail- 
ANCESTOR_ADDEDpublic static final int ANCESTOR_ADDED An ancestor-component was added to the hierarchy of visible objects (made visible), and is currently being displayed.- See Also:
- Constant Field Values
 
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ANCESTOR_REMOVEDpublic static final int ANCESTOR_REMOVED An ancestor-component was removed from the hierarchy of visible objects (hidden) and is no longer being displayed.- See Also:
- Constant Field Values
 
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ANCESTOR_MOVEDpublic static final int ANCESTOR_MOVED An ancestor-component changed its position on the screen.- See Also:
- Constant Field Values
 
 
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Constructor Detail- 
AncestorEventpublic AncestorEvent(JComponent source, int id, Container ancestor, Container ancestorParent) Constructs an AncestorEvent object to identify a change in an ancestor-component's display-status.- Parameters:
- source- the JComponent that originated the event (typically- this)
- id- an int specifying- ANCESTOR_ADDED,- ANCESTOR_REMOVEDor- ANCESTOR_MOVED
- ancestor- a Container object specifying the ancestor-component whose display-status changed
- ancestorParent- a Container object specifying the ancestor's parent
 
 
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Method Detail- 
getAncestorpublic Container getAncestor() Returns the ancestor that the event actually occurred on.- Returns:
- the Containerobject specifying the ancestor component
 
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getAncestorParentpublic Container getAncestorParent() Returns the parent of the ancestor the event actually occurred on. This is most interesting in an ANCESTOR_REMOVED event, as the ancestor may no longer be in the component hierarchy.- Returns:
- the Containerobject specifying the ancestor's parent
 
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getComponentpublic JComponent getComponent() Returns the component that the listener was added to.- Returns:
- the JComponenton which the event occurred
 
 
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