Broadcasting data

DataSource applications can also broadcast data.

A DataSource application can send data by broadcasting it to all the other DataSource applications connected to it. This can be useful in some cases, such as when an external data-supplying component only sends out data in a broadcast manner. Here’s an example of how it works:

Diagram showing broadcast subscription for news headline feeds

In this example, a News feed system sends News Headlines to a News Feed Adapter, which broadcasts the headlines to all its DataSource peers. Here there is just one peer, a Liberator, which caches the News Headlines and supplies them to those client applications that have subscribed to receive them.

Each connected DataSource application must have a data service configured that defines where the broadcast data comes from.

See also:

Active subscription model
Combining active subscriptions and broadcast data
Subjects, symbols and fields
Data types