Package edu.caltech.nanodb.indexes

Enum IndexType

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<IndexType>
    public enum IndexType
extends java.lang.Enum<IndexType>
    This enumeration represents the different kinds of indexes that NanoDB supports, since different kinds of indexes facilitate different kinds of lookups with different performance characteristics.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      HASHED_INDEX
      Represents indexes that hash values to determine a tuple's location.
      ORDERED_INDEX
      Represents indexes that order values to determine a tuple's location.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private IndexType()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static IndexType valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static IndexType[] 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

      • ORDERED_INDEX

        public static final IndexType ORDERED_INDEX
        Represents indexes that order values to determine a tuple's location.

      • HASHED_INDEX

        public static final IndexType HASHED_INDEX
        Represents indexes that hash values to determine a tuple's location.

    • Constructor Detail

      • IndexType

        private IndexType()

    • Method Detail

      • values

        public static IndexType[] 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 (IndexType c : IndexType.values())
    System.out.println(c);
        Returns:
        an array containing the constants of this enum type, in the order they are declared

      • valueOf

        public static IndexType 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