Info
When using WSO2 CEP we don't need to define the streams, this is because WSO2 CEP will infer the stream definitions from the Input Mappings.
<define-stream> ::= define stream <stream-name>
<attribute-name> <type> {<attribute-name> <type>}
All streams that cannot be derived from queries must be defined before use.
Following example shows a sample stream definition;
Defining a stream called StockExchangeStream having three attributes, where symbol of type string, price of type int and volume of type float.
define stream StockExchangeStream (symbol string, price int, volume float );