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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

ActiveX/C++ source code files

BladeSmith generates Visual C++ project and workspace files and a UNIX™ makefile into the \project\src directory.

Table 1. Visual C++ project and workspace files
File name	Description
Project.dsp	Visual C++ project file
Project.dsw	Visual C++ workspace file
ProjectU.mak	Combination C and C++ makefile for use from the UNIX command line

This section lists the files generated for an ActiveX value object project called Project that consists of a single ActiveX value object with an underlying opaque type called Opaque.

Important: In addition to adding logic to the opaque support routines (see Add project-specific logic to the source code), you can add your own functions to the C++ classes in the OpaqueCommon, OpaqueClient, and OpaqueServer .cpp and .h files. Do not modify any other of the generated source files.

The following sections provide a brief description of the ActiveX/C++ source files that BladeSmith generates into the project\src\ActiveX directory.

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