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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.
AppendixesThis section contains additional reference information.
Source files generated for DataBlade® modulesYou can use the tables in this section to find a brief description of the types of files BladeSmith generates for your DataBlade® project.
ActiveX/C++ source code files
Client project filesFor each project, BladeSmith generates client-specific support library files and project files.
Project files

Project files

For each project named Project, BladeSmith generates the following client project files. Do not modify these files.

Table 1. Project files
File name	Description
ProjectX.cpp	Object map entry, DLL entry points, and so on
ProjectX.def	Definitions file
ProjectX.idl	IDL file that Visual C++ uses to generate ProjectX.h and ProjectX.tlb
ProjectX.rc	Resource file
ProjectXps.def	Generated by ATL
ProjectXps.mk	Generated by ATL
Resource.h	Header file that contains definitions, including IDR_OPAQUE
StdAfx.cpp	For precompiled header
StdAfx.h	Standard header file

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