diff options
Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Naming/README')
| -rw-r--r-- | TAO/orbsvcs/orbsvcs/Naming/README | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Naming/README b/TAO/orbsvcs/orbsvcs/Naming/README deleted file mode 100644 index ced27c7503f..00000000000 --- a/TAO/orbsvcs/orbsvcs/Naming/README +++ /dev/null @@ -1,68 +0,0 @@ -// $Id$ - -CONTENT -======= -This directory contains files implementing CosNaming idl interfaces -(from CORBA COSS), as well as a few utilities. Server code, service -executable, and documentation for using the service are located in -$TAO_ROOT/orbsvcs/Naming_Service. - - -UTILITIES -========= -Naming_Utils.{h,cpp} contain utility classes that can simplify -programs which play a role of Naming Service server or client. See -$TAO_ROOT/orbsvcs/Naming_Service/Naming_Service.{h,cpp} and -$TAO_ROOT/orbsvcs/tests/Simple_Naming/client.{h,cpp} for examples of -using these classes. - - -IMPLEMENTATION -============== -The architecture for TAO's implementation of CosNaming::NamingContext -interface follows the Bridge pattern. - - * TAO_Naming_Context (in Naming_Context.h) inherits from - POA skeleton, and plays the role of 'Abstraction' (aka 'Interface') - in the Bridge architecture - it forwards all client - requests to a 'ConcreteImplementor' through an 'Implementor' pointer. - - * TAO_Naming_Context_Impl (in Naming_Context.h) is an abstract base class for all - concrete implementations of NamingContext functionality (i.e., 'Implementor'). - - * Currently, TAO Naming Service has two 'ConcreteImplementors': - TAO_Transient_Naming_Context (in Transient_Naming_Context.h), and - TAO_Persistent_Naming_Context (in Persistent_Naming_Context.h), - providing non-persistent and persistent, hash-table-based implementations of the - NamingContext functionality, correspondingly. Both - 'ConcreteImplementors' inherit from TAO_Hash_Naming_Context (in - Hash_Naming_Context.h), which, in turn, inherits from - TAO_Naming_Context_Impl. TAO_Hash_Naming_Context factors out code - common to both 'ConcreteImplementors'. (Here we have a form of the - Template Method pattern). - -* Other major classes: - - TAO_Persistent_Context_Index - facilitates implementation of the - Persistent version of the Naming Service. - - TAO_BindingsIterator - implements CosNaming::BindingIterator - interface. Can be used with either of the NamingContext 'ConcreteImplementors'. - -* Persistent implementation of the Naming Service uses ACE_Allocators - and memory-mapped files. - -The Bridge implementation class structure makes it easy to: - -1) Create and plug-in different CosNaming::NamingContext implementations by - subclassing TAO_Naming_Context_Impl. - -2) Dynamically load an appropriate NamingContext implementation at - run-time, based on the config file entry, by making TAO_Naming_Context_Impl - inherit from ACE_Service_Object... - - -TO-DO -===== -Extend CosNaming::NamingContext interface and its implementation to -support binding of more than one object per name and name -resolution according to policies (e.g., random or round robin), to provide -Load Balancing functionality. |