diff options
Diffstat (limited to 'core/src/main/scala/org/apache')
| -rw-r--r-- | core/src/main/scala/org/apache/spark/util/collection/OpenHashMap.scala | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/core/src/main/scala/org/apache/spark/util/collection/OpenHashMap.scala b/core/src/main/scala/org/apache/spark/util/collection/OpenHashMap.scala index 22d7a4988b..10ab0b3f89 100644 --- a/core/src/main/scala/org/apache/spark/util/collection/OpenHashMap.scala +++ b/core/src/main/scala/org/apache/spark/util/collection/OpenHashMap.scala @@ -25,6 +25,9 @@ import scala.reflect.ClassTag * space overhead. * * Under the hood, it uses our OpenHashSet implementation. + * + * NOTE: when using numeric type as the value type, the user of this class should be careful to + * distinguish between the 0/0.0/0L and non-exist value */ private[spark] class OpenHashMap[K : ClassTag, @specialized(Long, Int, Double) V: ClassTag]( |