Apama Capital Markets Foundation Documentation : Capital Markets Foundation : Market Data Management : Using MDA with legacy market data components
Using MDA with legacy market data components
Creating a Market Data Bridge
Session configuration
Market Data Bridge extension interface
The legacy application bridge
Since many existing adapters and applications have been built using legacy market data components, you might find it necessary to use a hybrid approach. This section describes how the Market Data Architecture can be used together with applications and adapters that use legacy components.
The CMF includes a Market Data Bridge service that allows you to implement applications with all the benefits of the Market Data Architecture, and still use an adapter that uses legacy interfaces.
After the MDBridge has been created, the service handles all the connection/communication protocol for both session management and datastream management. The legacy adapter will appear just as if it were an MDA Session. This does add a small overhead to the system latency, as the events need to be translated from the new to the old architecture and back.
The MDBridge only supports single subscriptions. Subscriptions after the data has started to flow will not work.
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