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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® API Function ReferenceThe HCL OneDB™ DataBlade® API Function Reference describes the DataBlade® API functions and the subset of functions that the DataBlade® API supports.
Function descriptionsThis section gives comprehensive reference information about the functions that are valid within DataBlade® API modules. It lists the function descriptions in alphabetical order, with syntax, usage information, and return values for the functions.
The mi_fparam_get() functionThe mi_fparam_get() function retrieves a pointer to the MI_FPARAM structure that is associated with the function descriptor of a user-defined routine.

The mi_fparam_get() function

The mi_fparam_get() function retrieves a pointer to the MI_FPARAM structure that is associated with the function descriptor of a user-defined routine.

Syntax

MI_FPARAM *mi_fparam_get(conn, funcdesc_ptr)
   MI_CONNECTION *conn;
   MI_FUNC_DESC *funcdesc_ptr;

conn: A pointer to a connection descriptor established by a previous call to mi_open(), mi_server_connect(), or mi_server_reconnect().
funcdesc_ptr: A pointer to the function descriptor whose MI_FPARAM structure mi_fparam_get() is to return.


Valid in client LIBMI application?	Valid in user-defined routine?
Yes	Yes

Usage

The mi_fparam_get() function returns a pointer to the MI_FPARAM structure that is part of the function descriptor funcdesc_ptr references. Once you obtain the MI_FPARAM structure for a UDR you want to call with the Fastpath interface, you can modify this MI_FPARAM before you execute the UDR with Fastpath. The mi_fparam_get() function is one of the functions of the Fastpath interface.

For more information about how to use an MI_FPARAM structure, see the HCL OneDB™ DataBlade® API Programmer's Guide.

Return values

An MI_FPARAM pointer: A pointer to the MI_FPARAM structure that is associated with the UDR that the specified function descriptor identifies.
NULL: The function was not successful.