C++ and Java objects communication

Question

I need to establish a communication model between C++ layer and Java layer in my application. Initially, I planned to use SOAP with XML, but my clients are interested in setting up a database communication channel.

I am new to DB and not sure how to proceed. I would like to take your sincere suggestions on the implementation of communication in terms of objects between C++ and Java layer using database.

Thanks, Geet

How do the two layers interact with the database? Do you need to call C++ code from Java or the other way round? — dirkgently, Sep 01 '10 at 16:20
No the expectation is to build the database of objects in the Java layer and query the details from C++ layer and populate the object properties. — pankaj pankaj, Sep 01 '10 at 17:27
Convince your clients that CORBA will be a less masochist approach. — Denis Tulskiy, Sep 01 '10 at 17:33
Are you trying to convert objects from C++ to Java (i. e., convert C++ strings to Java strings, and vice versa)? — Anderson Green, Sep 08 '12 at 22:35

score 6 · Answer 1 · answered Sep 01 '10 at 16:22

6

Database as communication? shudder

http://en.wikipedia.org/wiki/Database-as-IPC

This is an anti-pattern. Can you change your clients' minds?

Sockets are easier than a full blown SOAP interface.

answered Sep 01 '10 at 16:22

Starkey

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score 2 · Answer 2 · answered Sep 01 '10 at 17:12

2

If you have 2 different applications communicating, sockets is the way to go. If your C++ layer is more like a library, you could also use JNI (http://en.wikipedia.org/wiki/JNI, google for tutorials).

answered Sep 01 '10 at 17:12

Cephalopod

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score 1 · Answer 3 · answered Sep 01 '10 at 16:27

The choice of communication channel and blocking model is largely application dependent but sockets will probably work best if you don't need to worry about security. SSL/Mutual auth is your next step up.

I rolled my own, but I would use google protocol buffers if I had to do it all again. http://code.google.com/p/protobuf/

They seem to capture much of what people wanted out of ASN1 (but not all messed up) and let you do what people often try to do with serializing java Properties.

C++ and Java objects communication

3 Answers3

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