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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 extensions
You 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 Kit
The
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 Guide
The
HCL Informix®
DataBlade®
Developers Kit User's Guide
describes how to use tools to develop and package
DataBlade®
modules.
Design
DataBlade®
modules
This section describes the
DataBlade®
module SQL design issues.
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®.
Informix®
extensions and
DataBlade®
modules
These topics describe how to use built-in database extensions and separately installed
DataBlade®
modules.
Creating extensions
You 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® API
Programmer's Guide
The
Informix® DataBlade® API Programmer's Guide
describes information about the
DataBlade® API
, the C-language application programming interface (API) provided with
HCL Informix®
.
DataBlade® API
Function Reference
The
Informix® DataBlade® API Function Reference
describes the
DataBlade® API
functions and the subset of
Informix® ESQL/C
functions that the
DataBlade® API
supports.
DataBlade®
Developers Kit
The
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 Overview
The
HCL Informix®
DataBlade®
module overview serves as an overview of the
HCL Informix®
DataBlade®
module development process.
DataBlade®
Developers Kit User's Guide
The
HCL Informix®
DataBlade®
Developers Kit User's Guide
describes how to use tools to develop and package
DataBlade®
modules.
Getting started with
DataBlade®
module development
This section provides an overview of
DataBlade®
module development and describes the resources and tools the
HCL Informix®
database server provides to facilitate development.
Design
DataBlade®
modules
This section describes the
DataBlade®
module SQL design issues.
Data model
A data model is a high-level definition of a
DataBlade®
module: what objects it represents and what operations on those objects it provides.
Data type design
After you have designed a data model for your
DataBlade®
module, you can design its specifics, such as data types to best represent your
DataBlade®
module objects.
Query language interface
The next component in
DataBlade®
module design is the query language interface.
Query processing
To develop a
DataBlade®
module, you need a general understanding of query processing and
HCL Informix®
SQL. You must also understand the execution environment inside your
Informix®
database server ̵ the multithreading model, the collection of processes in which
DataBlade®
module routines can execute, and concurrent access to database objects, transactions, and so on.
Interoperability
The interoperability of a
DataBlade®
module refers to how well that module works with your
HCL Informix®
database server and with other
DataBlade®
modules.
Programming guidelines
Use this section to help you when you write the design specification for your
DataBlade®
module.
Create
DataBlade®
objects by using BladeSmith
Use BladeSmith to create
DataBlade®
modules.
Programming
DataBlade®
module routines in C
This section contains information to help you edit and compile C language source code generated by
DataBlade®
.
Create ActiveX value objects
This section describes how to use the to create ActiveX value objects. This section describes the use of C++ to implement opaque type support routines.
The ActiveX value objects
This section provides information for client application developers who are using ActiveX value objects.
Programming
DataBlade®
modules in Java™
This section contains information to help you edit and compile Java™ language source code generated by BladeSmith.
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™.
Debugging and testing
DataBlade®
modules on Windows™
This section describes how to debug and perform functional tests for
DataBlade®
modules written in C and C++ for
Informix®
on Windows™.
BladePack
BladePack creates installation packages for
DataBlade®
modules and other software products.
Appendixes
This section contains additional reference information.
DBDK InfoShelf
The
DataBlade®
Developers Kit InfoShelf is designed to help you work with BladeSmith.
J/Foundation Developer's Guide
The
J/Foundation Developer's Guide
describes how to write user-defined routines (UDRs) in the Java™ programming language for
Informix®
.
R-Tree Index User's Guide
The
Informix® R-Tree Index User's Guide
describes the
HCL Informix®
R-tree secondary access method and how to access and use its components.
User-Defined Routines and Data Types Developer's Guide
The
Informix® User-Defined Routines and Data Types Developer's Guide
describes how to define new data types and enable user-defined routines (UDRs) to extend
HCL Informix®
.
Virtual-Table Interface Guide
The
Informix® Virtual-Table Interface Programmer's Guide
explains how to create a primary access method with the Virtual-Table Interface (VTI) so that users have a single SQL interface to
HCL Informix®
tables and to data that does not conform to the storage scheme of
HCL Informix®
.
Virtual-Index Interface Guide
The
Informix® Virtual-Index Interface Programmer's Guide
explains how to create a secondary access method with the Virtual-Index Interface (VII) to extend the built-in indexing schemes of
HCL Informix®
typically with a
DataBlade®
module.
Design
DataBlade
modules
This section describes the
DataBlade®
module SQL design issues.
Data model
A data model is a high-level definition of a
DataBlade
module: what objects it represents and what operations on those objects it provides.
Data type design
After you have designed a data model for your
DataBlade
module, you can design its specifics, such as data types to best represent your
DataBlade
module objects.
Query language interface
The next component in
DataBlade
module design is the query language interface.
Query processing
To develop a
DataBlade
module, you need a general understanding of query processing and
HCL Informix®
SQL. You must also understand the execution environment inside your
Informix®
database server ̵ the multithreading model, the collection of processes in which
DataBlade
module routines can execute, and concurrent access to database objects, transactions, and so on.
Interoperability
The interoperability of a
DataBlade
module refers to how well that module works with your
HCL Informix®
database server and with other
DataBlade
modules.
Related information
Programming guidelines
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