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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.
Debugging and testing DataBlade® modules on UNIX™This section describes how to debug and perform functional tests for DataBlade® modules written in C for Informix® on UNIX™.
Performing functional testsWhen you generate functional tests, BladeSmith creates a set of files that include shell scripts and SQL scripts for testing opaque data type support routines, user-defined routines, and cast support functions. By default, these files are created in the functest subdirectory of the directory containing the BladeSmith project file.
Execute functional testsTo execute functional scripts, use the main.sh script.
The functional test scripts

The functional test scripts

The main.sh script is a Bourne shell script that accepts one of five possible command-line parameters, as described in the following table.


Command	Description
main.sh build	Runs user.sh with a build target. Runs the setup.sql script.
main.sh clean	Deletes .log files. Runs user.sh with a clean target. Executes clean.sql in the database.
main.sh run	Uses DB-Access to run each SQL script generated by BladeSmith, saving the output in a .log file. If a .req file exists, calls diff to determine the test result. It prints a message telling whether the test passed or failed. After all BladeSmith-generated tests are run, executes user.sh with a run target.
main.sh save	Copies all .log files to .req files, overwriting existing .req files.
main.sh all	Performs the build, run, and clean actions. Use this shortcut after the .req files have been saved.

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