org.eclipse.viatra.transformation.runtime.emf.changemonitor

Class IChangeMonitor

java.lang.Object

org.eclipse.viatra.transformation.runtime.emf.changemonitor.IChangeMonitor

Direct Known Subclasses:

ChangeMonitor

public abstract class IChangeMonitor
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
IChangeMonitor(ViatraQueryEngine engine)

Method Summary

Modifier and Type	Method and Description
abstract ChangeDelta	createCheckpoint() Creates a checkpoint which means: Model changes since the last checkpont are saved The model changes in the future are tracked separately from the changes before the checkpoint
abstract ChangeDelta	getDeltaSinceLastCheckpoint() Returns all changed elements between the last two checkpoints
abstract void	startMonitoring() Sets the model whose changes are observed.

Methods inherited from class java.lang.Object

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

Constructor Detail

IChangeMonitor

public IChangeMonitor(ViatraQueryEngine engine)

Method Detail

startMonitoring

public abstract void startMonitoring()
                              throws ViatraQueryException

Sets the model whose changes are observed. Also creates an initial checkpoint with no changes registered.

Parameters:

deployment - the deployment model

engine - engine associated with the

Throws:

ViatraQueryException

createCheckpoint

public abstract ChangeDelta createCheckpoint()

Creates a checkpoint which means:

Model changes since the last checkpont are saved The model changes in the future are tracked separately from the changes before the checkpoint

Returns:

the DTO containing the changed elements since the last checkpoint

getDeltaSinceLastCheckpoint

public abstract ChangeDelta getDeltaSinceLastCheckpoint()

Returns all changed elements between the last two checkpoints

Returns:

the DTO containing the changed elements