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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® Module Development OverviewThe HCL Informix® DataBlade® module overview serves as an overview of the HCL Informix® DataBlade® module development process.
DataBlade® module concepts
DataBlade® modules and the database serverThis section describes the overall architecture of the HCL Informix® database server, how DataBlade® modules affect database server processes, and the application programming interfaces you can use in your DataBlade® modules and client applications.
DataBlade® module programming languages
Java™ languageThe enables you to create database objects in Java™.

Java language

The enables you to create database objects in Java™.

You can create user-defined routines, cast support functions, aggregates, and opaque data type support routines in Java. You can also create Java value objects to represent opaque data types on a client computer. You cannot create Java routines that take row or collection data types.

The code generated for Java by the DataBlade® Developers Kit uses Informix® JDBC Driver methods to communicate with the database server. Informix JDBC Driver supports the JDBC 2.0 API. You can use the JDBC 2.0 API to create database applications in Java.

For more information about Informix JDBC Driver, see the Informix JDBC Driver Programmer's Guide.

For a complete discussion about creating user-defined routines in Java, see the J/Foundation Developer's Guide.

Important: You must use the J/Foundation option for HCL Informix to enable services that use Java. For more information about J/Foundation, see the J/Foundation Developer's Guide.

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