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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ also provides DataBlade® modules, which are packages of extended database objects for a particular purpose and that are installed separately from the database server. Alternatively, you can create your own user-defined objects for HCL OneDB™.
Creating extensionsYou can create user-defined data types, routines, access methods, and other database objects to suit your needs. You can use application programming interfaces to write user-defined routines and applications that access data in HCL OneDB™ databases.
J/Foundation Developer's GuideThe HCL® J/Foundation Developer's Guide describes how to write user-defined routines (UDRs) in the Java™ programming language for HCL OneDB™.
Prepare for Java™ supportYou must install and configure software before you can write user-defined routines (UDRs) in Java™ code.
Configure Java™ support

Configure Java support

Configuring the database server to support Java™ code requires several steps. You might find it convenient to first configure the database server without Java code, and then modify the database server to add Java support.

Preparing to use Java code with the database server requires these additions to the basic configuration procedure:

Create an sbspace to hold the JAR files.
Create the JVP properties file.
Add (or modify) the Java configuration parameters in the onconfig configuration file.
Set environment variables.

$ONEDB_HOME/extend/krakatoa is your jvphome. You need to include this path in several places as you prepare J/Foundation.

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