ObjectTreeManager (Ontopia)

java.lang.Object
- net.ontopia.topicmaps.impl.utils.ObjectTreeManager

All Implemented Interfaces:

Serializable, EventListenerIF, EventManagerIF
```
public class ObjectTreeManager
extends Object
implements EventManagerIF, Serializable
```
INTERNAL: Event manager that fires object added and removed events for children of added or removed objects.
This class is itself an event listener that listens to the standard property change events fired by the object model. Objects that are added or removed are traversed and further events for the children of those objects are fired.
If your event listeners depends on knowing when objects are added or removed use this class instead of doing the traversal yourself.

See Also:

Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type Class Description

protected class ObjectTreeManager.EventHandler

Field Summary

Fields
Modifier and Type	Field	Description
`protected CollectionFactoryIF`	`cfactory`
`protected Map<String,ObjectTreeManager.EventHandler>`	`handlers`
`protected Map<String,Set<EventListenerIF>>`	`listeners`
`protected ObjectTreeManager`	`otree`

Constructor Summary

Constructors
Constructor Description

ObjectTreeManager(EventManagerIF emanager, CollectionFactoryIF cfactory)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addListener(EventListenerIF listener, String event)`	INTERNAL: Register the listener as a listener for the event.
`void`	`processEvent(Object object, String event, Object new_value, Object old_value)`	INTERNAL: A method that receives notification when an event has been triggered.
`void`	`removeListener(EventListenerIF listener, String event)`	INTERNAL: Unregister the listener as a listener for the event.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

handlers

protected Map<String,ObjectTreeManager.EventHandler> handlers

listeners

protected Map<String,Set<EventListenerIF>> listeners

otree
```
protected ObjectTreeManager otree
```

cfactory
```
protected CollectionFactoryIF cfactory
```

Constructor Detail

ObjectTreeManager

public ObjectTreeManager(EventManagerIF emanager,
                         CollectionFactoryIF cfactory)

Method Detail
- addListener
```
public void addListener(EventListenerIF listener,
                        String event)
```
  Description copied from interface: EventManagerIF
  
  INTERNAL: Register the listener as a listener for the event.
  
  Specified by:
  
  addListener in interface EventManagerIF
- removeListener
```
public void removeListener(EventListenerIF listener,
                           String event)
```
  Description copied from interface: EventManagerIF
  
  INTERNAL: Unregister the listener as a listener for the event.
  
  Specified by:
  
  removeListener in interface EventManagerIF
- processEvent
```
public void processEvent(Object object,
                         String event,
                         Object new_value,
                         Object old_value)
```
  Description copied from interface: EventListenerIF
  
  INTERNAL: A method that receives notification when an event has been triggered.
  
  Specified by:
  
  processEvent in interface EventListenerIF