public static class KV.OrderByKey<K extends java.lang.Comparable<? super K>,V> extends java.lang.Object implements SerializableComparator<KV<K,V>>
Comparator
that orders KVs
by the natural ordering of their keys.
A null
key is less than any non-null
key.
Constructor and Description |
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OrderByKey() |
Modifier and Type | Method and Description |
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int |
compare(KV<K,V> a,
KV<K,V> b) |