org.eclipse.viatra.transformation.evm.notification

Class AttributeMonitor<Atom>

java.lang.Object

org.eclipse.viatra.transformation.evm.notification.AttributeMonitor<Atom>

Direct Known Subclasses:

DefaultAttributeMonitor, LightweightAttributeMonitor

public abstract class AttributeMonitor<Atom>
extends java.lang.Object

The class defines the operations that are required to observe the EMF attribute changes on atom objects.

Constructor Summary

Constructors

Constructor and Description
AttributeMonitor()

Method Summary

Modifier and Type	Method and Description
void	addAttributeMonitorListener(IAttributeMonitorListener<Atom> listener) Registers a listener for notifications when a feature value of an object in a atom changes.
void	dispose() Disposes of the attribute monitor by unregistering from each atom.
protected void	notifyListeners(Atom atom) Sends notification to listeners when the given atom is updated.
abstract void	registerFor(Atom atom) Register the attribute monitor to watch feature values of object defined in the given atom.
void	removeAttributeMonitorListener(IAttributeMonitorListener<Atom> listener) Unregisters a listener registered by addAttributeMonitorListener(IAttributeMonitorListener).
abstract void	unregisterFor(Atom atom) Remove the attribute monitor from watching the given atom.
abstract void	unregisterForAll() Remove the attribute monitor from watching registered atoms.

Methods inherited from class java.lang.Object

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

Constructor Detail

AttributeMonitor

public AttributeMonitor()

Method Detail

addAttributeMonitorListener

public void addAttributeMonitorListener(IAttributeMonitorListener<Atom> listener)

Registers a listener for notifications when a feature value of an object in a atom changes.

The listener can be unregistered via removeAttributeMonitorListener(IAttributeMonitorListener).

Parameters:

listener -

removeAttributeMonitorListener

public void removeAttributeMonitorListener(IAttributeMonitorListener<Atom> listener)

Unregisters a listener registered by addAttributeMonitorListener(IAttributeMonitorListener).

Parameters:

listener -

registerFor

public abstract void registerFor(Atom atom)

Register the attribute monitor to watch feature values of object defined in the given atom.

Parameters:

atom -

unregisterForAll

public abstract void unregisterForAll()

Remove the attribute monitor from watching registered atoms.

unregisterFor

public abstract void unregisterFor(Atom atom)

Remove the attribute monitor from watching the given atom.

Parameters:

atom -

notifyListeners

protected void notifyListeners(Atom atom)

Sends notification to listeners when the given atom is updated.

Parameters:

match -

dispose

public void dispose()

Disposes of the attribute monitor by unregistering from each atom. TODO should we clear the listener list?