echopointng.externalevent
Class ExternalEventMonitorService

java.lang.Object
  echopointng.externalevent.ExternalEventMonitorService

All Implemented Interfaces:

Service

public class ExternalEventMonitorService
extends java.lang.Object
implements Service

This service is used to listen for external events that come in when the user follows a URI that has ?serviceId=ExternalEvent on it.

Field Summary

static ExternalEventMonitorService

INSTANCE The singleton ExternalEventService monitoring service

Fields inherited from interface nextapp.echo2.webrender.Service

DO_NOT_CACHE

Constructor Summary

ExternalEventMonitorService()

Method Summary

void	deregister(ExternalEventMonitor monitor) Deregisters the ExternalEventMonitor with the service that is used to invoke external events.
java.lang.String	getId() Returns the unique identifier of this service.
int	getVersion() Returns the version of the service to be retrieved.
void	register(ExternalEventMonitor monitor) Registers the ExternalEventMonitor with the service that is used to invoke external events.
void	service(Connection conn) Services an HTTP request.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ExternalEventMonitorService INSTANCE

The singleton ExternalEventService monitoring service

Constructor Detail

ExternalEventMonitorService

public ExternalEventMonitorService()

Method Detail

getId

public java.lang.String getId()

Description copied from interface: Service

Returns the unique identifier of this service.

Specified by:

getId in interface Service

Returns:

The unique identifier of this service.

See Also:

Service.getId()

getVersion

public int getVersion()

Description copied from interface: Service

Returns the version of the service to be retrieved. When a service is requested with an updated version number, a non-cached copy will be used. getVersion() should return distinct values whenever the service's content may have changed.

Specified by:

getVersion in interface Service

Returns:

The current version number of the service.

See Also:

Service.getVersion()

register

public void register(ExternalEventMonitor monitor)

Registers the ExternalEventMonitor with the service that is used to invoke external events.

Parameters:

monitor - an ExternalEventMonitor to be notified of external events.

deregister

public void deregister(ExternalEventMonitor monitor)

Deregisters the ExternalEventMonitor with the service that is used to invoke external events.

Parameters:

monitor - an ExternalEventMonitor to be removed from being notified of external events.

service

public void service(Connection conn)
             throws java.io.IOException

Description copied from interface: Service

Services an HTTP request. Information about the HTTP request as well as methods for issuing a response are available from the provided Connection object.

Specified by:

service in interface Service

Parameters:

conn - A Connection object which wraps HttpServletRequest and HttpServletResponse objects and provides access to the facilities of the Echo application container.

Throws:

java.io.IOException - in the event of errors related to processing the HTTP request or producing a response.

See Also:

Service.service(nextapp.echo2.webrender.Connection)