Oracle Application Server Implementation Java CORBA

Source: Internet
Author: User

Absrtact: This paper introduces the characteristics of Jcorba and how to deploy the Java CORBA component in Oracle Application server through a Jcorba application example.

The rapid development of the Internet has changed the traditional way of information exchange and the way enterprises operate, and it has become a medium for many new industries such as E-commerce, self-service, online shopping and online transactions. More and more enterprises build their own enterprise's information application platform through the Internet, and the Java language, with its many advantages such as ease of use, cross-platform and object-oriented, is becoming the popular Network Computing language for enterprise application and Internet application. Many companies are implementing their business applications such as E-commerce in Java, in order to adapt to this demand, Oracle company launched its Application server products OAS 4.0 (Oracle Application Server Version 4.0), It places the Java Virtual Machine (Machine) inside the In OAS4.0, a natural compilation method called the Java Accelerator is used to compile the Java Library program into standard C code, then compile the C code on different CPUs and operating system platforms, and generate a shared library for Java program invocation, which greatly improves the execution speed of Java programs.

In OAS4.0, Java applications have a variety of implementation forms, in which Jcorba (Java CORBA, abbreviated as JCO) with its flexible client calls, in line with CORBA 2.0 and widely concerned, as with some other CORBA implementation platform, JCORBA component in OAS 4.0 implementation, but also into the Oracle some of its own characteristics, the following through the introduction of Jcorba application of "mystack" process of development, to introduce the characteristics of Jcorba, development and use of the process.

First, Jcorba development tools

Development Jcorba, you can use any Java 1.1.4 or later version of Java Development platform for development, such as Oracle company JDeveloper, Sun Company JDK, BORLAND company JBuilder. In this example we use the SUN Company's JDK 1.1.5.

Ii. establishment of a directory of development environment documents

Prior to the establishment of JCORBA applications, the proposed establishment of a fixed format directory structure, which is conducive to the entire JCORBA application management, the directory structure of Figure 1 has indicated the corresponding location of the files in the instance, the corresponding files in the future work continued to join.

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