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Extending HCL OneDB™Beyond standard relational database objects, HCL OneDB™ can be extended to handle specialized data types, access methods, routines, and other objects. HCL OneDB™ includes many built-in extensions that are fully integrated in the database server. HCL OneDB™ 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 HCL OneDB™.
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 HCL OneDB™ 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 OneDB™ databases.
DataBlade® Developers Kit User's GuideThe HCL OneDB™ DataBlade® Developers Kit Users Guide describes how to use OneDB® DataBlade® Developers Kit (DBDK) tools to develop and package DataBlade® modules.
Create DataBlade® objects by using BladeSmithUse BladeSmith to create DataBlade® modules.
Create DataBlade® module objectsBladeSmith uses wizards to create and edit objects.
Create interfacesIf you expect other DataBlade® modules to use the functionality provided by your DataBlade® module, create an interface.

Create interfaces

If you expect other DataBlade® modules to use the functionality provided by your DataBlade module, create an interface.

DataBlade developers can include the interface in a DataBlade module to ensure that BladeManager registers the DataBlade module with the interface before registering the DataBlade module dependent on the interface.

The interface you define encompasses all of your DataBlade module.

The following table lists the properties you specify when you create an interface.

Table 1. Properties for creating an interface
Property	Default	Description
Interface name	INewInterface	The name of the interface. Must be unique. Change the name to Iproject, where project is the name of your DataBlade module.
Interface description	None	Optional. A description of the interface and its intended purpose.

For HCL OneDB™ Version 9.2 and later, the maximum length of an interface name is 64 characters.

For HCL OneDB Version 9.14, the maximum length of an interface name is 18 characters.