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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.
DataBlade® Developers KitThe DataBlade® Developers Kit (DBDK) guides contain information about the tools you can use to develop and package DataBlade® modules, which extend the functionality of HCL OneDB™ databases.
DataBlade® Developers Kit User's GuideThe HCL OneDB™ DataBlade® Developers Kit Users Guide describes how to use OneDB® DataBlade® Developers Kit (DBDK) tools to develop and package DataBlade® modules.
Programming guidelinesUse this section to help you when you write the design specification for your DataBlade® module.
Programming language optionsThis section explains the programming language options you have when you use BladeSmith to generate source code for your DataBlade® module.
Multilanguage DataBlade® module issuesIf you use more than one external programming language in your DataBlade® module, you might have more than one resulting shared library after you compile your source code.

Multilanguage DataBlade module issues

If you use more than one external programming language in your DataBlade® module, you might have more than one resulting shared library after you compile your source code.

The following figure illustrates the shared libraries you can produce from source code generated by BladeSmith.

Figure 1: Shared libraries for multilanguage DataBlade modules

For C and C++ server implementation code, BladeSmith generates a combined Visual C++ workspace file and UNIX™ makefile.

For Java™ server and client code, BladeSmith generates a single makefile that is appropriate for all operating systems.

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