Package org.rocksdb

Enum FilterPolicyType

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<FilterPolicyType>
    public enum FilterPolicyType
extends java.lang.Enum<FilterPolicyType>
    IndexType used in conjunction with BlockBasedTable.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      kBloomFilterPolicy
      This is a user-facing policy that automatically choose between LegacyBloom and FastLocalBloom based on context at build time, including compatibility with format_version.
      kRibbonFilterPolicy
      This is a user-facing policy that chooses between Standard128Ribbon and FastLocalBloom based on context at build time (LSM level and other factors in extreme cases).
      kUnknownFilterPolicy  

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Filter createFilter​(long handle, double param)  
      byte getValue()
      Returns the byte value of the enumerations value
      static FilterPolicyType valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static FilterPolicyType[] values()
      Returns an array containing the constants of this enum type, in the order they are declared.

      • Methods inherited from class java.lang.Enum

        clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait

    • Enum Constant Detail

      • kUnknownFilterPolicy

        public static final FilterPolicyType kUnknownFilterPolicy

      • kBloomFilterPolicy

        public static final FilterPolicyType kBloomFilterPolicy
        This is a user-facing policy that automatically choose between LegacyBloom and FastLocalBloom based on context at build time, including compatibility with format_version.

      • kRibbonFilterPolicy

        public static final FilterPolicyType kRibbonFilterPolicy
        This is a user-facing policy that chooses between Standard128Ribbon and FastLocalBloom based on context at build time (LSM level and other factors in extreme cases).

    • Method Detail

      • values

        public static FilterPolicyType[] values()
        Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: 
        for (FilterPolicyType c : FilterPolicyType.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static FilterPolicyType valueOf​(java.lang.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:
        java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
        java.lang.NullPointerException - if the argument is null

      • createFilter

        public Filter createFilter​(long handle,
                           double param)

      • getValue

        public byte getValue()
        Returns the byte value of the enumerations value
        Returns:
        byte representation