| java.lang.Object | |
| ↳ | com.pnfsoftware.jeb.core.events.JebEventSource |
 Known Direct Subclasses
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Known Indirect Subclasses
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Class Overview
The standard engines implementation of an IEventSource. Designed to emit JebEvent
s.
Summary
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JebEventSource()
Create an event with a null parent source.
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JebEventSource(IEventSource parentSource)
Create an event source and hook it to a parent source.
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| Public Methods | |||||||||||
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| synchronized void |
addListener(IEventListener listener)
Register a listener.
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| synchronized int |
countListeners()
Get the numbers of objects listening to this event source.
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| synchronized List<IEventListener> |
getListeners()
Get a copy of the list of listeners.
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| synchronized IEventSource |
getParentSource()
Get the parent source.
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| synchronized void |
insertListener(int index, IEventListener listener)
Insert a listner at the given position.
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| synchronized void |
notifyListeners(IEvent e)
Notify listeners that an event has occurred.
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| synchronized boolean |
removeListener(IEventListener listener)
Unregister a listener.
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| synchronized void |
setParentSource(IEventSource parentSource)
Set a parent source.
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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From interface
com.pnfsoftware.jeb.util.events.IEventSource
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Public Constructors
public JebEventSource ()
Create an event with a null parent source.
public JebEventSource (IEventSource parentSource)
Create an event source and hook it to a parent source. When this source notifies its observers of an event, the "parent source" will also be notified (regardless of the "parent source" being a listener of that observable).
Parameters
| parentSource | source that generated the event |
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Public Methods
public synchronized void addListener (IEventListener listener)
Register a listener. The implementor may allow duplicates.
Parameters
| listener | a listener of events generated by this source |
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public synchronized int countListeners ()
Get the numbers of objects listening to this event source.
Returns
- the number of listeners
public synchronized IEventSource getParentSource ()
Get the parent source.
Returns
- the parent source, or null if none
public synchronized void insertListener (int index, IEventListener listener)
Insert a listner at the given position.
public synchronized void notifyListeners (IEvent e)
Notify listeners that an event has occurred.
Parameters
| e | the event to be propagated |
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public synchronized boolean removeListener (IEventListener listener)
Unregister a listener. If the implementor allows duplicates in addListener(), it should deal with those consistently.
Parameters
| listener | the listener to be removed |
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Returns
- true if the listener was successfully removed, false
public synchronized void setParentSource (IEventSource parentSource)
Set a parent source.
Parameters
| parentSource | the optional parent source |
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