Module org.refcodes.servicebus

Package org.refcodes.servicebus

Class ServiceDirectoryImpl<S extends Service<?>,SCTX extends ServiceContext<S>>

java.lang.Object

org.refcodes.servicebus.ServiceDirectoryImpl<S,SCTX>

Type Parameters:

S - the generic type

SCTX - the generic type

All Implemented Interfaces:

ServiceDirectory<S,SCTX>, ServiceLookup<S,SCTX>

public class ServiceDirectoryImpl<S extends Service<?>,SCTX extends ServiceContext<S>>
extends Object
implements ServiceDirectory<S,SCTX>

The ServiceDirectoryImpl implements the ServiceDirectory.

Constructor Summary

Constructors

Constructor	Description
ServiceDirectoryImpl()

Method Summary

Modifier and Type	Method	Description
void	addService(ServiceDescriptor<S,SCTX> aServiceDescriptor)	Registers a service to the service bus.
Set<ServiceDescriptor<S,SCTX>>	getServiceDescriptors()	Returns a collection containing the ServiceDescriptor instances known by the ServiceLookup.
boolean	hasService(ServiceDescriptor<S,SCTX> aServiceDescriptor)	Determines whether the given service is known by the service bus by taking the service type and the service Meta-Data as criteria, not the service identity.
void	removeService(ServiceDescriptor<S,SCTX> aServiceDescriptor)	Unregisters a service to the service bus.

Methods inherited from class java.lang.Object

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

Constructor Details

ServiceDirectoryImpl

public ServiceDirectoryImpl()

Method Details

getServiceDescriptors

public Set<ServiceDescriptor<S,SCTX>> getServiceDescriptors()

Returns a collection containing the ServiceDescriptor instances known by the ServiceLookup.

Specified by:

getServiceDescriptors in interface ServiceLookup<S extends Service<?>,SCTX extends ServiceContext<S>>

Returns:

A collection containing the ServiceDescriptor instances known by the ServiceLookup.

hasService

public boolean hasService(ServiceDescriptor<S,SCTX> aServiceDescriptor)

Determines whether the given service is known by the service bus by taking the service type and the service Meta-Data as criteria, not the service identity. I.e. there must not be the same service twice on the service bus which can not be distinguished by its type and its Meta-Data (i.e. a matcher must be able to distinguish two services from each other).

Specified by:

hasService in interface ServiceLookup<S extends Service<?>,SCTX extends ServiceContext<S>>

Parameters:

aServiceDescriptor - the service descriptor

Returns:

True in case the given service is known by the service bus.

addService

public void addService(ServiceDescriptor<S,SCTX> aServiceDescriptor)
                throws DuplicateServiceRuntimeException

Registers a service to the service bus.

Specified by:

addService in interface ServiceDirectory<S extends Service<?>,SCTX extends ServiceContext<S>>

Parameters:

aServiceDescriptor - the service descriptor

Throws:

DuplicateServiceRuntimeException - in case the service cannot be identified unambiguously by a matcher. A matcher declaration must be possible to identify the given service unambiguously. The service as being described by the service type and the service Meta-Data is already registered to the service bus.

removeService

public void removeService(ServiceDescriptor<S,SCTX> aServiceDescriptor)
                   throws UnknownServiceRuntimeException

Unregisters a service to the service bus.

Specified by:

removeService in interface ServiceDirectory<S extends Service<?>,SCTX extends ServiceContext<S>>

Parameters:

aServiceDescriptor - the service descriptor

Throws:

UnknownServiceRuntimeException - in case the service is not known.