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	AIDA SLC Database Provider Guide	SLAC Detailed SLAC Computing Software Home Software Detailed AIDA SLC Peer PG

This page provides documentation for users and programmers of AIDA's SLC Database Provider. SLC Database provides data from the database values in the SLC Control System. It also allows the setting of float scalar database values.

See Also: Basic Users Guide to Aida, REF_AIDASHR; AIDA SLC Peer Programmers Guide

Users Guide

This section describes what an AIDA user should know about accessing SLC Database data through AIDA. For general information on using AIDA see Basic Users Guide to Aida, and the Aida javadoc, in particular the classes DaObject and DaReference (and DaReference's parent _DaReference) in aida.lib.da which form Aida's programming interface. One can also use Matlab.

Table 1: Summary of AIDA Data Provider for SLC Database Data

String query = "XCOR:LI03:120//LEFF";
DaReference r = new DaReference(query, da);
r.setType(DaValue.Type.FLOAT);
r.compile(da);
DaValue v = da.getDaValue(query);

String query = "XCOR:LI31:41//BCON"; /* Indication of set value operation. */
Float floatValue = new Float(5.0f); /* Specified desired value. */
DaValue inData = new DaValue(floatValue); /* Creation of DaValue to hold floatValue. */
da.setDaValue(query, inData); /* Perform set BCON value operation (no value is returned). */

* See DaObject and DaReference (and DaReference's parent _DaReference) in aida.lib.da for full API and method signatures.

Programmers Guide

The SLC Database Data Provider is a provider in the AIDA SLC Peer (along with the SLC History Data Provider, the SLC Model Data Provider, the SLC BPM Data Provider, the SLC Magnet Data Provider, the SLC Multiknob Data Provider, the SLC Master Oscillator Data Provider, and the SLC Klystron Data Provider). Development of all these data providers is described in a Programmers Guide here.