Package org.apache.drill.exec.store.dfs.easy

Enum EasyFormatPlugin.ScanFrameworkVersion

java.lang.Object
java.lang.Enum<EasyFormatPlugin.ScanFrameworkVersion>
org.apache.drill.exec.store.dfs.easy.EasyFormatPlugin.ScanFrameworkVersion
All Implemented Interfaces:
Serializable, Comparable<EasyFormatPlugin.ScanFrameworkVersion>
Enclosing class:
EasyFormatPlugin<T extends FormatPluginConfig>
public static enum EasyFormatPlugin.ScanFrameworkVersion extends Enum<EasyFormatPlugin.ScanFrameworkVersion>

  • Enum Constant Details

    • CLASSIC

      public static final EasyFormatPlugin.ScanFrameworkVersion CLASSIC
      Use the "classic" low-level implementation based on the Scan Batch.

    • EVF_V1

      public static final EasyFormatPlugin.ScanFrameworkVersion EVF_V1
      Use the first-generation "EVF" framework.

    • EVF_V2

      public static final EasyFormatPlugin.ScanFrameworkVersion EVF_V2
      Use the second-generation EVF framework. New code should use this option. EVF V2 automatically handle LIMIT push-down. Readers that use it should check the return value of startBatch() to detect when they should stop reading. Readers can also call atLimit() after each harvest() call to detect the limit and report EOF.

  • Method Details

    • values

      public static EasyFormatPlugin.ScanFrameworkVersion[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.
      Returns:
      an array containing the constants of this enum type, in the order they are declared

    • valueOf

      public static EasyFormatPlugin.ScanFrameworkVersion valueOf(String name)
      Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum type has no constant with the specified name
      NullPointerException - if the argument is null