Javadoc Javadoc

Provides a variety of different transforms for computing the maximum values in a collection, either globally or for each key.


Example 1: get the maximum of a PCollection of Doubles.

PCollection<Double> input = ...;
PCollection<Double> max = input.apply(Max.doublesGlobally());

Example 2: calculate the maximum of the Integers associated with each unique key (which is of type String).

PCollection<KV<String, Integer>> input = ...;
PCollection<KV<String, Integer>> maxPerKey = input

Example 3:

Example 4: