All Handler classes are located under the OnixS::ICE::iMpact::MarketData namespace. Header files are assembled in the OnixS/ICE/iMpact/MarketData.h header file.

Attention: The Handler needs credentials from ICE to login and download product definitions. Please contact ICE Support to get a username and password for TCP connection. When you receive it please update the connectivity configuration file with these values.

The typical way of using the Handler is as follows:

Optionally create an instance of OnixS::ICE::iMpact::MarketData::HandlerSettings class to adjust Handler's options like activating logging;
Create an instance of OnixS::ICE::iMpact::MarketData::Handler class;
Register listener for errors to be notified about failures occurred while processing market data from multicast channels;
Register listeners for miscellaneous events like product definition reception and/or changes in the market state;
Create an subscription for interested markets by forming OnixS::ICE::iMpact::MarketData::MarketSubscriptions collection;
Start a subscription by invoking OnixS::ICE::iMpact::MarketData::Handler::start member and supplying a previously created collection of subscriptions as a parameter;
Process changes in books and states of the markets through previously registered listeners;
Stop subscription using the OnixS::ICE::iMpact::MarketData::Handler::stop member.

The following pages will guide through the most significant parts of the Handler's architecture:

Setting Up Feed Engine Uncovers Feed Engine concept and its internals.
Adjusting Handler Settings Describes primary aspects of configuring the Handler.
Connectivity Configuration Explains what the connectivity configuration is.
Logging Services Provides basic information about logging services.
Warning Handling Provides information about warning handling.
Error Handling And Recovery Provides information about error handling.
Understanding Handler States Provides information about the Handler states.
Product Definitions Provides information about various product definitions.
Selecting Securities Of Interest Provides information on how to make the Handler raise security-related events for particular securities only.
Security Definition Recovery Provides information on how the Handler downloads product definitions.
Product Definitions Cache Provides information on how the Handler stores product definitions cache.
Event Listeners Explains events fired by the Handler to reflect multicast and TCP feed events.
Subscribing To Multicast Groups Provides information on how to create a subscription and start listening to market data.
Rational Numbers Provides information on how to create a subscription and start listening to market data.