September 2017
Beginner to intermediate
360 pages
8h 13m
English
book
Practical Real-time Data Processing and Analytics
by Shilpi Saxena, Selva raj Ramasamy, Prateek Bhati, Saurabh Gupta
Content preview from Practical Real-time Data Processing and Analytics
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Filters
The following are characteristics of filter:
- Filters take in a tuple as input and decide whether or not to keep that tuple or not
Here is the example:
class MyFilter extends BaseFilter { public boolean isKeep(TridentTuple tuple) { return tuple.getInteger(0) == 1 && tuple.getInteger(1) == 2; }}
Input:
[1,2][3,4][7,3]
Output:
[1,2]
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