Sorted List binarySearch functions #542
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Based on PR for commons-lang3 apache/commons-lang#1270
There is
Collections.binarySearch()in Java core. However, it searches for exact element which is often not usable, as the elements are typically sorted by particular field.These methods introduce
binarySearch()on (sorted)List, with ability to provide sorting key extraction function and key comparator.The rest of semantics, behavior, parameters and return values remain consistent with
Collections.binarySearch()from Java core.