Can I invoke a Java program with database call from a cpp program

Question

I have written a java program that does some logic check which involves a database call.

I was able to call a simple cpp program from java using JNI stackoverflow question.

How can I do the opposite, i.e Is there a way to call java (with database) from a cpp program?

I have PostgreSQL database. Any direction would be a great starting point for me.

Thank you for your time. :)

Edit

Seems like a similar question has a very nice answer here link

score 2 · Accepted Answer · answered Feb 19 '19 at 18:19

2

JNI is working from the other way as well cpp -> java http://java.sun.com/javase/6/docs/technotes/guides/jni/index.html

/* load and initialize a Java VM, return a JNI interface  
* pointer in env */ 
JNI_CreateJavaVM(&jvm, &env, &vm_args); 

/* invoke the Main.test method using the JNI */ 
jclass cls = env->FindClass("Main"); 
jmethodID mid = env->GetStaticMethodID(cls, "test", "(I)V"); 
env->CallStaticVoidMethod(cls, mid, 100);

answered Feb 19 '19 at 18:19

Mehmetcan Burak Karaoglan

56
7

Main concern is will it work with database calls as well? – Arka Mallick Feb 19 '19 at 18:38
1

why should not work? This one calls the method on java side just integrate with this method your database related stuff. – Mehmetcan Burak Karaoglan Feb 21 '19 at 06:58

Can I invoke a Java program with database call from a cpp program

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