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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 DataBlade® module routines in CThis section contains information to help you edit and compile C language source code generated by DataBlade®.
Compile DataBlade® module codeThis section describes how to compile DataBlade® module code.
Compiling on a Windows™ operating systemOn Windows™, you use the project.dsw file generated by BladeSmith to build your DataBlade® module with Visual C++ 6.0. The compiled DataBlade® module links to sapi.lib. This library resolves the mi_ and ifx_ symbols that the database server uses internally.

Compiling on a Windows operating system

On Windows™, you use the project.dsw file generated by BladeSmith to build your DataBlade® module with Visual C++ 6.0. The compiled DataBlade module links to sapi.lib. This library resolves the mi_ and ifx_ symbols that the database server uses internally.

About this task

To compile and link a dynamic link library by using Visual C++:

Procedure

Open the project.dsw in Visual C++.
Choose Build > Set Active Configuration.
Select a version of the project in the Set Active Project Configuration dialog box:
- Release. This version is suitable for release and does not contain debugging support.
- Debug. This version contains support for debugging.
Click OK.
Choose Build > Rebuild All to compile.

Results

Visual C++ creates a WinNT-i386 directory to hold the release version and a Debug directory to hold the debug version directory under the src\c of the dynamic link library.

Restriction: Do not link the client DataBlade API library in %INFORMIXDIR%\lib\dmi into the DataBlade module; that library resolves client services instead of database server services.

Visual C++ also performs the following tasks on the computer where the HCL OneDB™ database server is:

Creates a project.0 directory under the directory where your database server is installed (%INFORMIXDIR%\extend).
Copies the project.bld file and the SQL scripts to that directory.
Marks the project.bld file as read-only.