ARCHIVED: Pooled JVM in CICS Transaction Server V3

Evolving a heritage application using Java

In this chapter, we take a COBOL heritage application and describe ways that you can enhance it using the JCICS API. The stages of evolution are:

1. Implement a Web interface to coexist alongside the original 3270 display, which opens up the underlying business logic to a generation of Internet clients.

2. Fully implement the back-end business logic using Java, which introduces a pluggable data storage component for future scalability.

3. Implement a DB2 back-end, and migrate the application data from ...