WSO2 Complex Event Processor is succeeded by WSO2 Stream Processor. To view the latest documentation for WSO2 SP, see WSO2 Stream Processor Documentation.

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Siddhi language has a wide variety of extension extensions ranging from string processing to natural language processing. These extensions can be utilized in numerous scenarios to manipulate attributes with ease. When using extensions within Siddhi queries, you need to follow the convention of extensionName:functionName to refer to a particular extension. If the extension is of the Function type you can refer to it as shown in the following example in different parts of the query.

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