Interface EndpointResolverRegistry

  • All Known Implementing Classes:
    EndpointResolverRegistryImpl

    public interface EndpointResolverRegistry
    Implementations of this interface are responsible for mediating access to registered EndpointResolvers, which themselves map between abstract and concrete endpoint references, and/or facilitate renewal of stale references.

    An underlying mechanism in the style of the OGSA WS-Naming specification is assumed, where an EPR maybe be fully abstract, or concrete but with sufficient information embedded to enable its renewal if necessary.

    • Method Detail

      • register

        void register​(EndpointResolver resolver)
        Register an endpoint resolver.
        Parameters:
        resolver - the EndpointResolver to add to the chain.
      • unregister

        void unregister​(EndpointResolver resolver)
        Unregister an endpoint resolver.
        Parameters:
        resolver - the EndpointResolver to remove from the chain.
      • resolve

        EndpointReferenceType resolve​(EndpointReferenceType logical)
        Walk the list of registered EndpointResolvers, so as to retrieve a concrete EPR corresponding to the given abstract EPR, returning a cached reference if already resolved.

        This API is used by any actor that requires a concrete EPR (e.g. a transport-level Conduit), and must be called each and every time the EPR content is to be accessed (e.g. before each connection establishment attempt).

        Parameters:
        logical - the abstract EPR to resolve
      • renew

        EndpointReferenceType renew​(EndpointReferenceType logical,
                                    EndpointReferenceType physical)
        Walk the list of registered EndpointResolvers, so as to force a fresh resolution of the given abstract EPR, discarding any previously cached reference.

        This API may be used by say the transport-level Conduit when it detects a non-transient error on the outgoing connection, or by any other actor in the dispatch with the ability to infer server-side unavailability.

        Parameters:
        logical - the previously resolved abstract EPR
        physical - the concrete EPR to refresh
        Returns:
        the renewed concrete EPR if appropriate, null otherwise
      • mint

        EndpointReferenceType mint​(QName serviceName)
        Walk the list of registered EndpointResolvers, so as to mint a new abstract EPR for a given service name.
        Parameters:
        serviceName -
        Returns:
        the newly minted EPR if appropriate, null otherwise
      • mint

        EndpointReferenceType mint​(EndpointReferenceType physical)
        Walk the list of registered EndpointResolvers, so as to mint a new abstract EPR for a gievn physical EPR.
        Parameters:
        physical -
        Returns:
        the newly minted EPR if appropriate, null otherwise