Package org.apache.spark.util

Interface SparkCollectionUtils

public interface SparkCollectionUtils

  • Method Summary

    Modifier and Type
    Method
    Description
    <K> Object
    createArray(int size, K defaultValue, scala.reflect.ClassTag<K> evidence$1)
     
    <K, V> boolean
    isEmpty(Map<K,V> map)
     
    <K, V> boolean
    isNotEmpty(Map<K,V> map)
     
    <K> scala.collection.immutable.Map<K,Object>
    toMapWithIndex(scala.collection.Iterable<K> keys)
    Same function as keys.zipWithIndex.toMap, but has perf gain.

  • Method Details

    • toMapWithIndex

      <K> scala.collection.immutable.Map<K,Object> toMapWithIndex(scala.collection.Iterable<K> keys)
      Same function as keys.zipWithIndex.toMap, but has perf gain.
      Parameters:
      keys - (undocumented)
      Returns:
      (undocumented)

    • isEmpty

      <K, V> boolean isEmpty(Map<K,V> map)

    • isNotEmpty

      <K, V> boolean isNotEmpty(Map<K,V> map)

    • createArray

      <K> Object createArray(int size, K defaultValue, scala.reflect.ClassTag<K> evidence$1)