HLLAPI


Also found in: Acronyms.

HLLAPI

High Level Language Application Programming Interface

HLLAPI

(High Level Language Application Program Interface) An IBM programming interface that allows a PC application to communicate with a mainframe application. The hardware hookup is handled via normal micro to mainframe 3270 emulation. An extended version of the interface (EHLLAPI) has also been defined.
References in periodicals archive ?
As mentioned previously, many early screen-scraping products supported the HLLAPI or EHLLAPI specification.
While tedious, using an HLLAPI-based tool kit made it possible to achieve quick results, and many HLLAPI applications have been deployed to integrate legacy processes.
Unfortunately, HLLAPI applications require more effort to maintain than to develop and, over time, tend to devolve to a less maintainable state.
The rigid binding of the HLLAPI client to the legacy terminal session server can lead to instability when the application is deployed in a production environment.
It is desirable, however, to replace the procedural HLLAPI code with a layer that isolates and uncouples the legacy application specific component from the client application [4].
In Reflection for IBM and IBM Personal Communications comparison testing, including file transfer, HLLAPI and screen updates, WRQ consistently outperformed IBM:
For developers who don't use the ActiveX environment, abstracted HLLAPI function calls perform the same functionality.
TAMs shield the user from the need to understand details of emerging technologies (such as ODBC, HLLAPI, MAPI, or Active X) typically required to achieve integration.