java communication with Pascal application Is it Possible

Question

I have been asked by someone to implement communication between a Java application and a Pascal application. I have very little knowledge of Pascal. Is it possible? If so, can someone provide some guidance? Currently I am clueless at this point.

Answer 1

Sure this is possible.

In case if you simply need to use a set of functions implemented on Pascal you can use JNI with the same way as CIe create a DLL for Windows or shared library for UNIX using Pascal with the JNI specific function names. You can use pas2jni instead of javac -h (or javah) or make your live even simple using JNA

If you are interesting with multi-process integration, ie you have one app written on Java and another app written on Pascal you can use SOAP or REST API.

• To implementing SOAP on Pascal you can use Web Service Toolkit

• To implement REST on Pascal you can use
  mORMot toolkit.

Answer 2

You can use

• File system (cross file communications). ie you have one shared file which can be read/written by both apps
• Network (SOAP/REST)