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Extending Informix®Beyond standard relational database objects, HCL Informix® can be extended to handle specialized data types, access methods, routines, and other objects. Informix® includes many built-in extensions that are fully integrated in the database server. Informix® 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 Informix®.
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 Informix® 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 Informix® databases.
DataBlade® Developers Kit User's GuideThe HCL Informix® DataBlade® Developers Kit User's Guide describes how to use 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®.
Edit opaque type support routines in opaque.cThe following subsections describe the code BladeSmith generates for each routine and modifications you might need to make to the generated code.

Edit opaque type support routines in opaque.c

The following subsections describe the code BladeSmith generates for each routine and modifications you might need to make to the generated code.

Each of the generated support routines contains an MI_FPARAM argument. BladeSmith includes the MI_FPARAM argument in generated code for your convenience; you can add code to use it. The generated code, however, does not use the MI_FPARAM argument.

Important: To avoid merging conflicts when you regenerate your code, add code only in areas marked by TO DO: comments or after the generated code. If you do modify code outside the designated areas, after you regenerate you might have two copies of the routine: the one you modified, and the one BladeSmith generated. Although your changes remain, you must resolve the conflicts in the two pieces of code.

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