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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.
Getting started with DataBlade® module developmentThis section provides an overview of DataBlade® module development and describes the resources and tools the HCL Informix® database server provides to facilitate development.
Prepare to develop DataBlade® modulesThis section suggests how to prepare for developing DataBlade® modules. This overview is intended to act as a map for information resources.
Design your DataBlade® moduleDataBlade® modules can contain complex operations. A good design is critical to your success.
Write a functional specificationA functional specification describes the scope and functionality of your DataBlade® module, without documenting implementation details.

Write a functional specification

A functional specification describes the scope and functionality of your DataBlade® module, without documenting implementation details.

It also documents other issues for development, such as phases of functionality, compatibility, performance, and platform. A good functional specification shows how your DataBlade module solves the problem you designed it to solve.

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