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The Complex Event Processing Engine Manageability (CEPM) protocol, as specified in [MS-CEPM], is a web service protocol that defines the communication protocol between a client application and a complex event processing (CEP) server. Using this protocol, a client application can create metadata objects on a CEP server, start and stop queries, and query about the CEP system state. The CEPM protocol is stateless. All communication is initiated by the client. The server sends responses only in response to messages received.
The client and server use the LINQ Expression Tree serialization format, as specified in [MS-LETSF], to transfer expression logic between each other.
Actions
A protocol message to start the query is sent.
The message causes the CEP Engine to tap into the streaming data.
The engine calculates and sends output data.
Another message stops the engine from computing data.