NDLI: Dyalog-APL application with threads on the basis of ActiveX data objects

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Volume 30, Issue 4, June 2000

Artificial life evolution in a simplified APL2 environment

Using APL2 to compute the dimension of a fractal represented as a grammar

Client-server based application in the dyalog APL environment

High performance computing through parallel processing

What's wrong with APL2

Defining APL community

Object oriented APL

Interest made simple with arrays

APL tutorial in mathematical modelling

The design and implementation of an APL dialect, ELI

Experiences with APL on a mainframe as a webserver

Representation of ASN.1 in APL nested structures

An improved method for creating dynamic web forms using APL

Dyalog-APL application with threads on the basis of ActiveX data objects

Communication between PC and mainframe via TCP/IP using APL

Avoiding the pitfalls of corporate intranets

Noun phrase chunking with APL2

Houses, windows and DOHR's

SPARROW-a speech and knowledge based architecture for a workplace

High-level object oriented programming with array technology

APL Based medical image analysis

An integrated APL2 solution for population screening and control

A knowledge discovery method

Redistribution of totals through hierarchical data

Spoken-word direction of computer program synthesis

An interface between Java and APL

Comparative file I/O methods in APL2

Visual representation of document-oriented information on the web

Making of a conference

Volume 30, Issue 3, March 2000

Volume 30, Issue 2, Dec.1999

Volume 30, Issue 1, Sept. 1999

Dyalog-APL application with threads on the basis of ActiveX data objects

Content Provider	ACM Digital Library
Author	Karabanov, A. Korablev, J. Roche, G.
Abstract	This paper presents an implementation of ActiveX Data Objects (ADO) in multithreading Dyalog-APL applications providing high performance access to any data source. The suggested approach is based upon an OLEClient object of Dyalog-APL that provides an OLE (Object Linking and Embedding) automation mechanism for working with ADO as an OLE Automation Server. This concept of such Dyalog-APL applications consists in a presentation of data-processing on 3 levels of hierarchy:{ {OPERATION)ε TASK}εJOB.A synchronisation of database operations in threads is supported by ADO events. Low level operations are accumulated in a library of functions that can also be used autonomously in a single thread for solution of private tasks. These functions are optimised to work in a Dyalog-APL environment. It is available to use in a root of a objects tree RECORDSET object. Data-processing can be carried out directly at a low level to optimise performance, other objects can be created when necessary for the solution of concrete tasks. Many of the RECORDSET operations can be notified before and after each other. OLE is very dependent on the Visual Basic programming language and the syntax of APL is more restricted than the syntax of Visual Basic. It is discussed accommodation problems from syntax point of view.
Starting Page	112
Ending Page	120
Page Count	9
File Format	PDF
ISSN	01636006
DOI	10.1145/570440.570490
Journal	ACM SIGAPL APL Quote Quad (APLQ)
Volume Number	30
Issue Number	4
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1988-12-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article

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