Reuters AdfinX Real Time 1.0 Library User Guide (Doc. No. 4510529)

AdfinX Real Time 1.0 Library - User's Guide
Microsoft FrontPage Editor
On the Insert menu, click Advanced and then click AdfinX Real Time 1.0 Library control.
HTML
The AdxRtList control is referenced as follows:
The clsid is the unique identifier for the AdfinX Real Time library.
1.2.2. AdxRtxLib Overview
The AdxRtxLib component provides a way of accessing real time market data from within Windows
applications using standard ActiveX technology.
Real time market data are organized as items, which are in turn composed of fields that hold individual
atomic values. An item might represent the information concerning an individual bond, for example.
Items are themselves provided by data sources. When the data in an item needs to change, its source
updates the required fields, keeping their values up to date.
Real time market data
The AdxRtxLib component allows a program to retrieve the field values from market data items
and can inform the program when the source changes them. Using this component, the program
can perform a variety of tasks:
Maintaining lists of items providing real time market data;
Managing the list of fields within those items whose values are required;
Handling updates made to field values by the data source;
Allowing the retrieval of a single item image (“snapshot”), which will not be kept up to date.
Historical market data
Some data sources also allow historical data concerning individual items; the AdxRtxLib
component provides a mechanism for retrieving such data.
Contribution
Some data sources also allow contribution, whereby new values are supplied for item fields. All
consumers of the source will be informed of updates to those items in the usual way. Once again,
the AdxRtxLib component allows a program to contribute data in this way.
The AdxRtxLib Objects
To support this functionality within a program, the AdxRtxLib component provides objects of the
following types:
The AdxRtList object represents a collection of items, every item being a collection of fields. By
iterating through the collection, the program can retrieve information about any item or any field.
The AdxRtContribute object enables the contribution of new values for a set of fields in an item.
The AdxRtHistory object allows the program to request historical data concerning an item.
The AdxRtChain object allows for the retrieval of chains: these are lists of item names provided by
the data source.
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