By Steve Vinoski, Michael Henning
Here's the CORBA booklet that each C++ software program engineer has been watching for. complicated CORBA® Programming with C++ presents designers and builders with the instruments required to appreciate CORBA expertise on the architectural, layout, and resource code degrees. This publication bargains hands-on motives for construction effective purposes, in addition to lucid examples that supply functional recommendation on averting high priced blunders. With this ebook as a consultant, programmers will locate the aid they should effectively adopt industrial-strength CORBA improvement projects.
The content material is systematically prepared and provided so the e-book can be used as either an academic and a reference. the wealthy instance courses during this definitive textual content express CORBA builders how you can write clearer code that's extra maintainable, moveable, and effective. The authors' special assurance of the IDL-to-C++ mapping strikes past the mechanics of the APIs to debate themes equivalent to strength pitfalls and potency. An in-depth presentation of the recent transportable item Adapter (POA) explains find out how to reap the benefits of its various positive factors to create scalable and high-performance servers. moreover, distinctive dialogue of complex issues, reminiscent of rubbish assortment and multithreading, presents builders with the data they should write advertisement applications.
* In-depth insurance of IDL, together with universal idioms and layout trade-offs
* entire and unique factors of the existence Cycle, Naming, buying and selling, and occasion Services
* dialogue of IIOP and implementation repositories
* perception into the dynamic elements of CORBA, akin to dynamic typing and the recent DynAny interfaces
* recommendation on settling on applicable software architectures and designs
* precise, moveable, and vendor-independent resource code
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Extra info for Advanced CORBA Programming with C++
A client cannot communicate unless it holds an object reference. How, then, does a client obtain references (the client must have at least one reference to start with)? We address this bootstrapping issue in Chapter 18. For now, it is sufficient to say that references are published by servers in some way. For example, a server can Return a reference as the result of an operation (as the return value or as an inout or out parameter) Advertise a reference in some well-known service, such as the Naming Service or Trading Service Publish an object reference by converting it to a string and writing it into a file Transmit an object reference by some other out-of-band mechanism, such as sending it in e-mail or publishing it on a Web page By far the most common way for a client to acquire object references is to receive them in response to an operation invocation.
For your server, your main must initialize the ORB and the POA, create some servants, arrange for the servants to incarnate your CORBA objects, and finally, start listening for requests. Compile and link your server implementation files with the generated stubs and skeletons to create your server executable. For a C++ CORBA server, you provide the method implementations. The generated stubs and skeletons provide the IDL type implementations and the request dispatching code to translate incoming CORBA requests into C++ function calls on your servants.
A complete and intuitive language mapping makes it straightforward to develop CORBA applications in that language; conversely, a poor, incomplete, or ineffective language mapping seriously hampers CORBA application development. Official OMG language mapping specifications therefore undergo periodic revision and improvement to ensure their effectiveness. The existence of multiple OMG IDL language mappings means that developers can implement different portions of a distributed system in different languages.