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 Details

    • 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

      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

      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

      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