com.evolveum.midpoint.model.api.hooks

Interface ChangeHook

public interface ChangeHook

TODO This applies to all changes, therefore it will "hook" into addObject, modifyObject and also deleteObject.

Author:

semancik

Method Summary

Methods

Modifier and Type	Method and Description
<O extends ObjectType> HookOperationMode	invoke(ModelContext<O> context, com.evolveum.midpoint.task.api.Task task, OperationResult result) Generic method to be implemented by the hook.
void	invokeOnException(ModelContext context, Throwable throwable, com.evolveum.midpoint.task.api.Task task, OperationResult result) This method is invoked by the clockwork when an exception occurs.

Method Detail

invoke

<O extends ObjectType> HookOperationMode invoke(ModelContext<O> context,
                                              com.evolveum.midpoint.task.api.Task task,
                                              OperationResult result)

Generic method to be implemented by the hook. It is invoked by the Model Clockwork at these occasions: - after PRIMARY state has been entered, - after SECONDARY state has been entered, and - after each of secondary-state waves has been executed (i.e. with the state of SECONDARY for all except the last one, will have state set to FINAL). TODO: what about EXECUTION and POSTEXECUTION states?

Returns:

- FOREGROUND, if the processing of model operation should continue on the foreground - BACKGROUND, if the hook switched further processing into background (and, therefore, current execution of model operation should end immediately, in the hope it will eventually be resumed later) - ERROR, if the hook encountered an error which prevents model operation from continuing (this case is currently not defined very well)

invokeOnException

void invokeOnException(ModelContext context,
                     Throwable throwable,
                     com.evolveum.midpoint.task.api.Task task,
                     OperationResult result)

This method is invoked by the clockwork when an exception occurs. It is intended e.g. to implement a notification to the user.

Parameters:

context - actual model context at the point of processing the exception

throwable - the exception itself

task - actual task, in context of which the operation was carried out

result - actual operation result - the handler should create a subresult here for its operation This method has no return value, as it is not expected that the processing would continue in the background. (This could change in the future.)