Download Advanced CORBA Programming with C++ by Michi Henning PDF

By Michi Henning

Written for the skilled C++ developer dealing with real-world CORBA for the 1st time, complicated CORBA Programming with C++ is an invaluable advisor to latest most well-liked typical for allotted computing.After a brief travel of CORBA fundamentals, the authors leap correct in with a minimal skeleton program written in C++. From there, they supply actually huge assurance of CORBA IDL, in addition to many counsel for utilizing IDL facts varieties in C++. (They hide complex gains reminiscent of any, TypeCode, and DynAny later within the book.).Next the publication unveils its pattern software - a disbursed weather regulate method. fabric at the transportable item Adapter and the article existence Cycle, together with rubbish assortment suggestions, rounds out this part. extra chapters learn the main points of item Request agents (ORBs), together with net Inter-ORB Protocol (IIOP), repositories, and binding. The authors additionally current CORBA's integrated APIs for Naming, buying and selling, and occasion providers (including asynchronous occasion handling), that is most beneficial as reference material.Final sections study options for higher scalability, together with multithreading and optimizing community site visitors for CORBA items. The authors supply quite a few brief excerpts of C++ code, notwithstanding it has to be stated that a lot of this publication is reference fabric instead of a hands-on programming instructional.

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Extra info for Advanced CORBA Programming with C++

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Language mappings specify how IDL is translated into different programming languages. For each IDL construct, a language mapping defines which facilities of the programming language are used to make the construct available to applications. For example, in C++, IDL interfaces are mapped to classes, and operations are mapped to member functions of those classes. Similarly, in Java, IDL interfaces are mapped to public Java interfaces. Object references in C++ map to constructs that support the operator-> function (that is, either a pointer to a class or an object of a class with an overloaded operator-> member function).

The number operation takes no arguments and returns a long. A CORBA object supporting the Employee interface is expected to implement the number operation to return the number of the employee represented by that object. Object references are denoted in IDL by using the name of an interface as a type. For example: interface EmployeeRegistry { Employee lookup(in long emp_number); }; The lookup operation of the EmployeeRegistry interface takes an employee number as an input argument and returns an object reference of type Employee that refers to the employee object identified by the emp_number argument.

Language mappings also specify how applications use ORB facilities and how server applications implement servants. 32 IT-SC book: Advanced CORBA® Programming with C++ OMG IDL language mappings exist for several programming languages. As of this writing, the OMG has standardized language mappings for C, C++, Smalltalk, COBOL, Ada, and Java. Other language mappings exist as well—for example, mappings have also been independently defined for languages such as Eiffel, Modula 3, Perl, Tcl, Objective—C, and Python--but at this time they have not been standardized by the OMG.

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