com.cafesoft.core.service
Interface ServiceReference

All Known Implementing Classes:

StandardServiceReference

public interface ServiceReference

ServiceReference contains parameters that uniquely identify a Service type or an instance within some scope. type. This is useful for:

• defining dependencies on specific Services types or instances. If an
• constructing and managing metadata about Service instances

Method Summary

String	getId() Get the identifier of the referenced Service.
Class	getType() Get the type of the referenced Service.
boolean	matches(Service service) Check to see if a Service matches this ServiceReference.

Method Detail

getId

String getId()

Get the identifier of the referenced Service.

Returns:

the identifier of the referenced Service or null if the reference is not for a specific instance.

getType

Class getType()

Get the type of the referenced Service.

Returns:

the Class that specifies the type of the referenced Service.

matches

boolean matches(Service service)

Check to see if a Service matches this ServiceReference.

Parameters:

service - the Service instance.

Returns:

true if the Service is not null and:

1. this ServiceReference DOES NOT specify a Service id and the Service implements the type within this ServiceReference.
2. this ServiceReference DOES specify a Service id and the Service implements the type in this ServiceReference AND has the same identifier as the one within this ServiceReference.