The use of java for the development of new applications in high-end transaction systems generates special isolation and performance requirements. A new technology offering improved isolation and a significant performa...
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The use of java for the development of new applications in high-end transaction systems generates special isolation and performance requirements. A new technology offering improved isolation and a significant performance improvement is discussed in this article. The persistent reusable java virtual machine extends a regular javavirtualmachine by adding the facility to share classes and by providing a reset functionality, which permits serial reuse of the JVM. A z/OS benchmark demonstrated a performance improvement by a factor of 325, compared to a regular JVM. Thus the use of Enterprise java Beans has to be considered as a serious alternative when developing new transactional applications under the z/OS operating system.
The java Platform, Enterprise Edition (java EE, previous term: J2EE) has been designed to permit the use of java for mission critical transactional business applications such as financial accounting or enterprise reso...
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The java Platform, Enterprise Edition (java EE, previous term: J2EE) has been designed to permit the use of java for mission critical transactional business applications such as financial accounting or enterprise resource planning systems. When programming such applications it is still difficult to assure the isolation between transactions executing in parallel. Compliance with transaction isolation is a basic requirement to keep underlying data in a consistent state. This paper analyses existing problems and gives an overview of the solutions that are presently available or under discussion.
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