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Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Naming/Storable_Naming_Context_Activator.h')
-rw-r--r-- | TAO/orbsvcs/orbsvcs/Naming/Storable_Naming_Context_Activator.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Naming/Storable_Naming_Context_Activator.h b/TAO/orbsvcs/orbsvcs/Naming/Storable_Naming_Context_Activator.h new file mode 100644 index 00000000000..d8799fd1137 --- /dev/null +++ b/TAO/orbsvcs/orbsvcs/Naming/Storable_Naming_Context_Activator.h @@ -0,0 +1,91 @@ +// -*- C++ -*- + +// $Id$ + +// ============================================================================ +// +// = LIBRARY +// cos +// +// = FILENAME +// Storable_Naming_Context_Activator.h +// +// = AUTHOR +// Byron Harris <harris_b@ociweb.com> +// +// ============================================================================ + +#ifndef TAO_STORABLE_NAMING_CONTEXT_ACTIVATOR_H +#define TAO_STORABLE_NAMING_CONTEXT_ACTIVATOR_H +#include /**/ "ace/pre.h" + +#include "tao/PortableServer/PortableServer.h" +#include "tao/PortableServer/ServantActivatorC.h" +#include "tao/LocalObject.h" + +#if (TAO_HAS_MINIMUM_POA == 0) + +#include "orbsvcs/Naming/naming_serv_export.h" + +TAO_BEGIN_VERSIONED_NAMESPACE_DECL + +class TAO_Naming_Service_Persistence_Factory; + +/** + * A servant activator to be use with a TAO_Storable_Naming_Context. + * Permits contexts saved to disk in one naming service process to be + * "lazily" created on demand in other processes by reading the + * context file off disk only when a request to the context is made. + */ +class TAO_Naming_Serv_Export TAO_Storable_Naming_Context_Activator : + public virtual PortableServer::ServantActivator +{ +public: + + /** + * The constructor takes arguments needed to create a + * TAO_Storable_Naming_Context and TAO_Naming_Context on demand. + */ + TAO_Storable_Naming_Context_Activator(CORBA::ORB_ptr orb, + TAO_Naming_Service_Persistence_Factory *factory, + const ACE_TCHAR *persistence_directory, + size_t context_size); + + virtual ~TAO_Storable_Naming_Context_Activator(); + + /** + * Create a TAO_Storable_Naming_Context and TAO_Naming_Context on + * demand if a request to a naming context CORBA reference is made + * and the servant implementing this reference does not yet exist. + */ + virtual PortableServer::Servant incarnate (const PortableServer::ObjectId &oid, + PortableServer::POA_ptr poa + ACE_ENV_ARG_DECL) + ACE_THROW_SPEC ((CORBA::SystemException, + PortableServer::ForwardRequest)); + + /** + * Used by the POA to delete the servant created from a call to incarnate. + */ + virtual void etherealize (const PortableServer::ObjectId &oid, + PortableServer::POA_ptr adapter, + PortableServer::Servant servant, + CORBA::Boolean cleanup_in_progress, + CORBA::Boolean remaining_activations + ACE_ENV_ARG_DECL) + ACE_THROW_SPEC ((CORBA::SystemException)); + +private: + + CORBA::ORB_ptr orb_; + TAO_Naming_Service_Persistence_Factory *factory_; + const ACE_TCHAR *persistence_directory_; + size_t context_size_; +}; + +TAO_END_VERSIONED_NAMESPACE_DECL + +#endif /* TAO_HAS_MINIMUM_POA */ + +#include /**/ "ace/post.h" +#endif |