Utilizing Java API from a Cobol program

Question

We have some COBOL programs running on our mainframe and we need one of those to communicate with our back end vault through a Java API. Is there any way a Cobol program can invoke the Java program?

Would it be possible to use a Web Service from Cobol? How would I integrate a Cobol program with anything else?

Answer 1

Found this:

A COBOL program can interoperate with JAVA.

To achieve inter-language interoperability with Java™, you must follow certain rules and guidelines for: Using services in the Java Native Interface (JNI) Coding data types Compiling your COBOL programs You can invoke methods that are written in Java from COBOL programs, and you can invoke methods that are written in COBOL from Java programs. For basic Java object capabilities, you can use COBOL object-oriented language. For additional Java capabilities, you can call JNI services.

Because Java programs might be multi-threaded and use asynchronous signals, compile your COBOL programs with the THREAD option.

Also, we are using Cobol Enterprise, which has support for web services. The integration shall then be done using the WS functionality found in Cobol Enterprise.