org.jboss.as.controller

Interface OperationContext.RollbackHandler

Enclosing interface:

OperationContext

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface OperationContext.RollbackHandler

Handler for a callback to an OperationStepHandler indicating that the overall operation is being rolled back and the handler should revert any change it has made.

Field Summary

Fields

Modifier and Type	Field and Description
static OperationContext.RollbackHandler	NOOP_ROLLBACK_HANDLER A OperationContext.RollbackHandler that does nothing in the callback.
static OperationContext.RollbackHandler	REVERT_RELOAD_REQUIRED_ROLLBACK_HANDLER A OperationContext.RollbackHandler that calls OperationContext.revertReloadRequired().

Method Summary

Modifier and Type	Method and Description
void	handleRollback(OperationContext context, org.jboss.dmr.ModelNode operation) Callback to an OperationStepHandler indicating that the overall operation is being rolled back and the handler should revert any change it has made.

Field Detail

NOOP_ROLLBACK_HANDLER

static final OperationContext.RollbackHandler NOOP_ROLLBACK_HANDLER

A OperationContext.RollbackHandler that does nothing in the callback. Intended for use by operation step handlers that do not need to do any clean up work -- e.g. those that only perform reads or those that only perform persistent configuration changes. (Persistent configuration changes need not be explicitly rolled back as the OperationContext will handle that automatically.)

REVERT_RELOAD_REQUIRED_ROLLBACK_HANDLER

static final OperationContext.RollbackHandler REVERT_RELOAD_REQUIRED_ROLLBACK_HANDLER

A OperationContext.RollbackHandler that calls OperationContext.revertReloadRequired(). Intended for use by operation step handlers call OperationContext.reloadRequired() and perform no other actions that need to be rolled back.

Method Detail

handleRollback

void handleRollback(OperationContext context,
                    org.jboss.dmr.ModelNode operation)

Callback to an OperationStepHandler indicating that the overall operation is being rolled back and the handler should revert any change it has made. A handler executing in OperationContext.Stage.MODEL need not revert any changes it has made to the configuration model; this will be done automatically. A handler need not to remove services created by the operation; this will be done automatically.

Parameters:

context - the operation execution context; will be the same as what was passed to the OperationStepHandler.execute(OperationContext, ModelNode) method invocation that registered this rollback handler.

operation - the operation being rolled back; will be the same as what was passed to the OperationStepHandler.execute(OperationContext, ModelNode) method invocation that registered this rollback handler.