org.ros.node
Class DefaultNodeListener

java.lang.Object
  org.ros.node.DefaultNodeListener

All Implemented Interfaces:

NodeListener

public class DefaultNodeListener
extends java.lang.Object
implements NodeListener

A NodeListener which provides empty defaults for all signals.

Constructor Summary

DefaultNodeListener()

Method Summary

void	onError(Node node, java.lang.Throwable throwable) Called when the Node experiences an unrecoverable error.
void	onShutdown(Node node) Called when the ConnectedNode has started shutting down.
void	onShutdownComplete(Node node) Called when the Node has shut down.
void	onStart(ConnectedNode connectedNode) Called when the Node has started and successfully connected to the master.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultNodeListener

public DefaultNodeListener()

Method Detail

onStart

public void onStart(ConnectedNode connectedNode)

Description copied from interface: NodeListener

Called when the Node has started and successfully connected to the master.

Specified by:

onStart in interface NodeListener

Parameters:

connectedNode - the ConnectedNode that has been started

onShutdown

public void onShutdown(Node node)

Description copied from interface: NodeListener

Called when the ConnectedNode has started shutting down. Shutdown will be delayed, although not indefinitely, until all NodeListeners have returned from this method.

Since this method can potentially delay ConnectedNode shutdown, it is preferred to use NodeListener.onShutdownComplete(Node) when ConnectedNode resources are not required during the method call.

Specified by:

onShutdown in interface NodeListener

Parameters:

node - the Node that has started shutting down

onShutdownComplete

public void onShutdownComplete(Node node)

Description copied from interface: NodeListener

Called when the Node has shut down.

Specified by:

onShutdownComplete in interface NodeListener

Parameters:

node - the Node that has shut down

onError

public void onError(Node node,
                    java.lang.Throwable throwable)

Description copied from interface: NodeListener

Called when the Node experiences an unrecoverable error.

Specified by:

onError in interface NodeListener

Parameters:

node - the Node that experienced the error

throwable - the Throwable describing the error condition