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9.
IDL COMPILER
The Nokia M2M ADK includes an IDL compiler for the embedded application
development. The IDL compiler is a program that reads IDL files and produces
the necessary programming language-specific files: skeletons and stubs. These
translate message data into a form that is appropriate for cross-platform
messaging. This is described in Figure 5. The block arrows show that a client
code-calling a method on the server only sees a local method call, which is no
different from the mundane method-calls in non-distributed programming. The
ORB, together with the generated stub and skeleton code, hides the distribution
completely.
IDL
Client
Server
Stub
Skeleton
Request
ORB
ORB
Figure 5. Stub and skeleton files
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