Hi Mark,

Currently you cannot talk directly to the Data Adapter from the client, but you can talk to the Metadata Adapter, through the sendMessage method. The Metadata Adapter will receive a call to notifyUserMessage. Then, the Metadata Adapter could talk to the Data Adapter.

Consider that for enterprise applications, you will probably have a cluster of Lightstreamer Servers and you may want to leverage a server-side middleware (e.g. JMS) to dispatch messages to all your Data Adapters. In this case, you will probably deliver messages from the client to a typical web server component (e.g. a servlet), which will publish the data to the messaging bus. And the Data Adapters will listen to this bus.