Package org.jboss.as.controller

Interface ProcessStateNotifier

All Known Implementing Classes:

ControlledProcessStateService

public interface ProcessStateNotifier

Allows callers to check the current ControlledProcessState.State of the process and to register for notifications of state changes.

Author:

Brian Stansberry (c) 2019 Red Hat Inc.

Field Summary

Fields

Modifier and Type	Field	Description
static final NullaryServiceDescriptor<ProcessStateNotifier>	SERVICE_DESCRIPTOR

Method Summary

Modifier and Type	Method	Description
void	addPropertyChangeListener(PropertyChangeListener listener)	Register a listener for changes in the current state.
ControlledProcessState.State	getCurrentState()	Gets the current state of the controlled process.
void	removePropertyChangeListener(PropertyChangeListener listener)	Remove a listener for changes in the current state.

Field Details

SERVICE_DESCRIPTOR

static final NullaryServiceDescriptor<ProcessStateNotifier> SERVICE_DESCRIPTOR

Method Details

getCurrentState

ControlledProcessState.State getCurrentState()

Gets the current state of the controlled process.

Returns:

the current state. Will not be null

addPropertyChangeListener

void addPropertyChangeListener(PropertyChangeListener listener)

Register a listener for changes in the current state. The listener will be notified with a PropertyChangeEvent whose property name will be currentState. If listener is null, no exception is thrown and no action is taken.

Parameters:

listener - the listener

removePropertyChangeListener

void removePropertyChangeListener(PropertyChangeListener listener)

Remove a listener for changes in the current state. If listener was added more than once, it will be notified one less time after being removed. If listener is null, or was never added, no exception is thrown and no action is taken.

Parameters:

listener - the listener