Designing a BOM for a COBOL model

You generate a BOM for a COBOL model from a COBOL XOM. You generate the COBOL XOM from a COBOL copybook.

COBOL data models and execution options
You can define an execution object model (XOM) from Java™ classes or a COBOL copybook. You can also deploy rules in various ways for execution on z/OS®, and share rules between Java and COBOL platforms.
Guidelines for COBOL XOM generation
When you generate XOM from a COBOL copybook, it is important to understand how COBOL structures are handled in the XOM.
Setting the copybook importer options
The COBOL copybook import options must match the locale and character settings of the COBOL calling program.
Generating a COBOL XOM
You can generate a COBOL execution object model (XOM) from a COBOL copybook. A COBOL XOM provides your rule project with a Java representation of the COBOL data structures so that you can write rules in BAL and call your rules from a COBOL application.
Mapping COBOL structures to Java data types
You can map COBOL data structures to Java data types and modify default mappings during the XOM generation process.
Creating custom types for COBOL data items
You can add your own custom type converters, so that you can map COBOL data items to your own Java types.
Updating a COBOL XOM
You can update a COBOL XOM by changing one or several copybooks, and then by using the Update option to import the changes into the XOM.
Deleting a COBOL XOM
If you delete a COBOL XOM after you have generated the BOM, you must create a new XOM.
Implementing BOM methods for COBOL code generation
You implement BOM methods in COBOL so that, when you generate a COBOL program to execute the rules, the generated COBOL code can call the methods.
Updating the BOM when a copybook changes
You can update a BOM that was generated from a COBOL copybook-based XOM.
Converting a BOM to enable the BOM for COBOL
You can configure a Java BOM so that you can execute rules in a COBOL application as well as in a Java environment.

Parent topic: Designing business object models for COBOL