Package edu.caltech.nanodb.commands

Enum QueryCommand.Type

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<QueryCommand.Type>
    Enclosing class:
    QueryCommand
    public static enum QueryCommand.Type
extends java.lang.Enum<QueryCommand.Type>
    Typesafe enumeration of query-command types.

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      DELETE
      A DELETE query, which retrieves and then deletes rows of data in a table.
      INSERT
      An INSERT query, which adds new rows of data to a table.
      SELECT
      A SELECT query, which simply retrieves rows of data.
      UPDATE
      An UPDATE query, which retrieves and then modifies rows of data in a table.

    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private Type()  

    • Method Summary

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

      • SELECT

        public static final QueryCommand.Type SELECT
        A SELECT query, which simply retrieves rows of data.

      • INSERT

        public static final QueryCommand.Type INSERT
        An INSERT query, which adds new rows of data to a table.

      • UPDATE

        public static final QueryCommand.Type UPDATE
        An UPDATE query, which retrieves and then modifies rows of data in a table.

      • DELETE

        public static final QueryCommand.Type DELETE
        A DELETE query, which retrieves and then deletes rows of data in a table.

    • Constructor Detail

      • Type

        private Type()

    • Method Detail

      • values

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

      • valueOf

        public static QueryCommand.Type 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