org.modelio.api.modelio.model.event

Interface IModelChangeHandler

public interface IModelChangeHandler

Handler of model changes.

Each time the a model transaction is commited, a IModelChangeEvent class is computed and given to each IModelChangeHandler, and then each IModelChangeListener that is connected to the modeling session.

A model change handler is used to trigger model changes in reaction to other model changes.

Example of adding a new handler in Modelio.

MyModelChangeHandler handler = new MyModelChangeHandler(...);

Modelio.getInstance().getModelingSession().addModelHandler (handler);

Example of removing an existing handler from Modelio.

MyModelChangeHandler handler = ...;

Modelio.getInstance().getModelingSession().removeModelHandler (handler);

The given IModelChangeEvent is used to get the delta between the model before the transaction execution and the model after.

See Also:

IModelChangeEvent

Method Summary

Modifier and Type	Method and Description
void	handleModelChange(IModelingSession session, IModelChangeEvent event) Invoked when the model has changed.

Method Detail

handleModelChange

void handleModelChange(IModelingSession session,
                       IModelChangeEvent event)

Invoked when the model has changed.

The session parameter is the modeling session where the event has occured. modifications. The event parameter provide the changes made in the model.

Parameters:

session - The modeling session.

event - Delta between the beginning and the end of the transaction.