DX FAQ

Ian Tree  10 May 2012 12:23:47

The Domino eXplorer - Frequently Asked Questions

1. Why does the DX kernel use the "C" as opposed to the "C++" Notes API?

The first reason that the Notes C API is used in preference to the Notes C++ API is largely historical, in the “old” days the C++ API was a somewhat flaky implementation prone to leaks, exceptions and other oddities and therefore the Notes C API was the only industrial strength option available.

There are two other reasons that continue to favour the use of the Notes C API over the C++ API. The Notes C API offers additional capabilities over those exposed by the C++ API which would lead to the DX implementation being a heterogeneous mix of both APIs. Use of the C++ API would impose a base containment pattern that would influence the Object Model design of the DX Kernels and DX applications in a way that would not be optimal for high throughput systems.

2. Why does the DX kernel use an ASCII rather than a UNICODE code base?

For historical and cross-platform compatibility reasons the Domino eXplorer code used the ASCII coding set. There is no fundamental reason at this time why the kernel and applications could not be migrated to a UNICODE model however there a minimal benefits from this and therefore ASCII remains the de-facto implementation standard.

LINKS

Information	Source Packages	Documentation	Articles
Background DX Reference Environments DX Development Environments DX Support DX Services Frequently Asked Questions License	DX Common Code QCopy QMove QACLMorph RDBCreate DXIPA DXTell SPZap	DX Application Design Guide DX Kernel API Reference DX Component Architecture DX Class Catalogue Using QCopy Using QMove Using QACLMorph Using RDBCreate Using DXIPA Using DXTell Using SPZap	Heavy Lift Computing Autonomic throughput optimisation

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