org.globus.ogsa.impl.base.servicegroup.service
Class ServiceGroupEntryProvider

java.lang.Object
  org.globus.ogsa.impl.base.servicegroup.service.ServiceGroupEntryProvider

All Implemented Interfaces:

GridServiceCallback, OperationProvider, ServiceDataValueCallback

public class ServiceGroupEntryProvider

extends java.lang.Object

implements OperationProvider, GridServiceCallback, ServiceDataValueCallback

Implements the Service Group Entry port type and its associated callbacks.

Constructor Summary

ServiceGroupEntryProvider()

Method Summary

void	activate(GridContext context) Called when a service becomes active after having been deactivated.
void	deactivate(GridContext context) Called just before a service gets deactivated.
QName[]	getOperations() Returns the operations supported by this provider.
java.util.Collection	getServiceDataValues(QName qname) Retrieves the service data values associated with a given QName.
void	initialize(GridServiceBase serviceBase) Initializes the grid service and populates its service data.
void	postCreate(GridContext context) Called when a service has been created and all of its configuration has been set up.
void	preCreate(GridServiceBase base) Called when a service object is created.
void	preDestroy(GridContext context) Called just before a service gets destroyed.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceGroupEntryProvider

public ServiceGroupEntryProvider()

Method Detail

initialize

public void initialize(GridServiceBase serviceBase)
                throws GridServiceException

Initializes the grid service and populates its service data.

Specified by:

initialize in interface OperationProvider

Parameters:

serviceBase - - the service base object

Throws:

GridServiceException

getOperations

public QName[] getOperations()

Returns the operations supported by this provider.

Specified by:

getOperations in interface OperationProvider

Returns:

Array of supported operation QNames.

preCreate

public void preCreate(GridServiceBase base)
               throws GridServiceException

Description copied from interface: GridServiceCallback

Called when a service object is created.

Specified by:

preCreate in interface GridServiceCallback

Parameters:

base - the Grid service that is in the process of creating this service object, or if this is a persistent Grid service it points to the service to be created.

Throws:

GridServiceException - if the service should not be created

postCreate

public void postCreate(GridContext context)
                throws GridServiceException

Description copied from interface: GridServiceCallback

Called when a service has been created and all of its configuration has been set up.

Specified by:

postCreate in interface GridServiceCallback

Parameters:

context - state information currently associated with the service that was created.

Throws:

GridServiceException - if the service creation should be aborted

activate

public void activate(GridContext context)
              throws GridServiceException

Description copied from interface: GridServiceCallback

Called when a service becomes active after having been deactivated. A service is always activated before any methods can be called on it.

Specified by:

activate in interface GridServiceCallback

Parameters:

context - state information currently associated with the service

Throws:

GridServiceException - if the service activation should be aborted

deactivate

public void deactivate(GridContext context)
                throws GridServiceException

Description copied from interface: GridServiceCallback

Called just before a service gets deactivated. When a service is deactivated it is subject to garbage collection, so if state is to be survive deactivation it has to be checkpointed into persistent storage. A deactivated service is however still discoverable by clients.

Specified by:

deactivate in interface GridServiceCallback

Parameters:

context - state information currently associated with the service

Throws:

GridServiceException - if the service deactivation failed

preDestroy

public void preDestroy(GridContext context)
                throws GridServiceException

Description copied from interface: GridServiceCallback

Called just before a service gets destroyed. After this call is made the framework removes all knowledge about the service, so it is a good place to clean up service resources. Note that this call can be triggered both by a client initiated destroy call, as well as a framework initiated softstate timeout.

Specified by:

preDestroy in interface GridServiceCallback

Parameters:

context - state information currently associated with the service

Throws:

GridServiceException - if the destruction failed (will be reported to clients in the case of explicit destroy calls)

getServiceDataValues

public java.util.Collection getServiceDataValues(QName qname)

Retrieves the service data values associated with a given QName.

Specified by:

getServiceDataValues in interface ServiceDataValueCallback

Parameters:

qname - - the qname for value retrieval

Returns:

Collection of the service data values