Home
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 DataBlade® module routines in CThis section contains information to help you edit and compile C language source code generated by DataBlade®.
Source files generated by BladeSmithWhen you create objects, BladeSmith generates the source files; some file names are prefixed with the name of the DataBlade® module (indicated by project). By default, BladeSmith creates the source files in the src and src\c subdirectories of the directory that contains the BladeSmith project file.

Source files generated by BladeSmith

When you create objects, BladeSmith generates the source files; some file names are prefixed with the name of the DataBlade® module (indicated by project). By default, BladeSmith creates the source files in the src and src\c subdirectories of the directory that contains the BladeSmith project file.

Generated source files are listed in the following table.

Table 1. Source files generated by BladeSmith
File name	Directory	Type of file	More information
project.h	src\c	C header file	See C header file for more information.
support.c udr.c Opaque.c statistics.c	src\c	C source code file	Only edit the udr.c, Opaque.c, and statistics.c files. See C source code files for more information.
project.def	src\c	C definition file	This file lists the exported routines declared in the source code file.
project.dsp project.dsw	src	Visual C++ files	See Microsoft Visual C++ files for more information.
readme.txt	src\c	Text file	This file describes the files in the src\c directory.
warning.txt	src\c	Text file	This file describes potential problems with your source code. See Warning file for more information.
ProjectU.mak	src	Makefile	Use this file for compiling on UNIX™. See Compiling on a UNIX operating system for more information.