com.sdm.quasar.client.core.server
Interface ServerAccessService

All Superinterfaces:

Service

All Known Implementing Classes:

ServerProxy

public interface ServerAccessService

extends Service

ServerAccessService works like a ServiceProvider that provides Services of the business logic. Unfortunately the Service interface cannot be used here to prevent a dependency of the server (or server-interface) part to the quasar client libraries. The ServerAccessService is itself a Service, because it must be locatable by client dialogs.

Author:

Thomas Wolf, Martin Haft

Method Summary

java.lang.Object	getService(java.lang.Class service) Returns the service implementation registered with the service manager.
BooleanState	getServiceCallingBooleanState() Returns a BooleanState, that is true as long as a service - previously returned by getService(Class) - is beeing called.
boolean	hasService(java.lang.Class service) Tests, whether a service is registered with the service manager.

Method Detail

hasService

public boolean hasService(java.lang.Class service)

Tests, whether a service is registered with the service manager.

Parameters:

service - the interface that defines the service

Returns:

true, iff an implementation is registered for the given service.

getService

public java.lang.Object getService(java.lang.Class service)

Returns the service implementation registered with the service manager.

Parameters:

service - the interface that defines the service

Returns:

the implementation for the service interface.

Throws:

java.lang.IllegalArgumentException - if the service is unknown

getServiceCallingBooleanState

public BooleanState getServiceCallingBooleanState()

Returns a BooleanState, that is true as long as a service - previously returned by getService(Class) - is beeing called.

Returns:

a BooleanState, that is true, while any server-side-service is called.