Module com.zeroc.icegrid

Package com.zeroc.IceGrid

Interface NodeObserver

All Superinterfaces:

Object

public interface NodeObserver
extends Object

Monitors changes to the state of the nodes.

Nested Class Summary

Nested classes/interfaces inherited from interface com.zeroc.Ice.Object

Object.Ice_invokeResult

Method Summary

Modifier and Type	Method	Description
default CompletionStage<OutgoingResponse>	dispatch(IncomingRequest request)	Dispatches an incoming request to one of the methods of this generated interface, based on the operation name carried by the request.
static String	ice_staticId()	Gets the type ID of the associated Slice interface.
void	nodeDown(String name, Current current)	Notifies the observer that a node went down.
void	nodeInit(NodeDynamicInfo[] nodes, Current current)	Provides the initial state of the nodes to the observer.
void	nodeUp(NodeDynamicInfo node, Current current)	Notifies the observer that a node came up.
void	updateAdapter(String node, AdapterDynamicInfo updatedInfo, Current current)	Notifies the observer that the state of an object adapter changed.
void	updateServer(String node, ServerDynamicInfo updatedInfo, Current current)	Notifies the observer that the state of a server changed.

Methods inherited from interface com.zeroc.Ice.Object

ice_id, ice_ids, ice_isA, ice_ping

Method Details

nodeInit

void nodeInit(NodeDynamicInfo[] nodes,
 Current current)

Provides the initial state of the nodes to the observer.

Parameters:

nodes - The current state of the nodes.

current - The Current object of the incoming request.

nodeUp

void nodeUp(NodeDynamicInfo node,
 Current current)

Notifies the observer that a node came up.

Parameters:

node - The node state.

current - The Current object of the incoming request.

nodeDown

void nodeDown(String name,
 Current current)

Notifies the observer that a node went down.

Parameters:

name - The node name.

current - The Current object of the incoming request.

updateServer

void updateServer(String node,
 ServerDynamicInfo updatedInfo,
 Current current)

Notifies the observer that the state of a server changed.

Parameters:

node - The node hosting the server.

updatedInfo - The new server state.

current - The Current object of the incoming request.

updateAdapter

void updateAdapter(String node,
 AdapterDynamicInfo updatedInfo,
 Current current)

Notifies the observer that the state of an object adapter changed.

Parameters:

node - The node hosting the adapter.

updatedInfo - The new adapter state.

current - The Current object of the incoming request.

ice_staticId

static String ice_staticId()

Gets the type ID of the associated Slice interface.

Returns:

the string "::IceGrid::NodeObserver"

dispatch

default CompletionStage<OutgoingResponse> dispatch(IncomingRequest request)
                                            throws UserException

Dispatches an incoming request to one of the methods of this generated interface, based on the operation name carried by the request.

Specified by:

dispatch in interface Object

Parameters:

request - the incoming request

Returns:

the outgoing response

Throws:

UserException - if a UserException is thrown, Ice will marshal it as the response payload.