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cobol-java-samples's Introduction

Non Object Oriented COBOL to Java interoperability

  • Project cics-to-java is an example of calling Java from a CICS COBOL program
  • Project cobolbatch-to-java is an example of calling Java from a COBOL Batch program
  • Project ims-to-java is an example of calling Java from an IMS BMP COBOL program and also running a Java program in a JBP Region

cics-to-java

swim diagram

cobolbatch-to-java

An example of a simple COBOL batch program calling a Java method using the cjbuild utility to generate the JNI interfaces.

flow diagram

ims-to-java

JCL IMS4C2J.jcl

  • creates a GSAM database, a PSB and a COBOL program calling the Java method og.ims.samples.ExportIVPDB1.exportAllToConsole().
  • build the COBOL program and generates its JNI interfaces using cjbuild
  • declare the PSB in IMS and starts it
  • run the COBOL program in a BMP region (it actually does more than exporting to the System.out console as it can also export the IVP database IVPDB1 to my GSAM database).

flow diagram

cobol-java-samples's People

Contributors

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