org.beanfabrics
Class PathObservation

java.lang.Object
  org.beanfabrics.AbstractBean
      org.beanfabrics.PathObservation

All Implemented Interfaces:

Bean

public class PathObservation
extends AbstractBean

The PathObservation observes all presentation models that are nodes along a specified Path (using a specified presentation model as root node) and notifies any PropertyChangeListener whenever the target node reference changes.

Constructor Summary

PathObservation(PresentationModel rootNode, Path path)
Creates a new PathObservation along the given Path starting at the given root node.

Method Summary

Path	getPath() Returns the path of this observation.
PresentationModel	getRootNode() Returns the root node.
PresentationModel	getTarget() Returns the target node specified by this observation's path relative to the root node.
boolean	hasTarget() Returns true if the target of this observation's path is not null.
boolean	isStarted() Returns true if this observation has been started.
protected void	setTarget(PresentationModel pModel)
void	start() Start this observation (again).
void	stop() Stops this observation.

Methods inherited from class org.beanfabrics.AbstractBean

addPropertyChangeListener, addPropertyChangeListener, equals, getPropertyChangeSupport, removePropertyChangeListener, removePropertyChangeListener

Methods inherited from class java.lang.Object

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

Constructor Detail

PathObservation

public PathObservation(PresentationModel rootNode,
                       Path path)

Creates a new PathObservation along the given Path starting at the given root node.

Parameters:

rootNode -

path -

Method Detail

getPath

public Path getPath()

Returns the path of this observation.

Returns:

the path of this observation

getRootNode

public PresentationModel getRootNode()

Returns the root node.

Returns:

the root node

isStarted

public boolean isStarted()

Returns true if this observation has been started.

Returns:

true if this observation has been started

stop

public void stop()

Stops this observation.

start

public void start()

Start this observation (again).

hasTarget

public boolean hasTarget()

Returns true if the target of this observation's path is not null.

Returns:

true if the target of this observation's path is not null

getTarget

public PresentationModel getTarget()

Returns the target node specified by this observation's path relative to the root node.

Returns:

the target node specified by this observation's path relative to the root node

setTarget

protected void setTarget(PresentationModel pModel)