​Hi All,

I have planned to develop Custom Window CEP extension for Unique window
with specifying length and time parameter for this. Already siddhi
extension has feature for getting the latest events that are unique
according to the unique attribute. It has only one parameter *'attribute*:
The attribute that should be checked for uniqueness'.For example we can
specify like this.
​*​*


*         <event> unique (<string>attribute)*
But now my task is add two parameters time and length *<event> unique
(<string>attribute, length) and **<event> unique (<string>attribute, time).
*So the output should be the unique events within the given time window or
length window according to the unique attribute value. So there should be
two classes extending WindowProcessor.

Please let me know if you have any suggestions on this.

Thanks.
Best Regards,
Yashothara.S

Software Engineer
WSO2
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