Enum DNSLabel

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Comparable<DNSLabel>

    public enum DNSLabel
    extends java.lang.Enum<DNSLabel>
    DNS label.
    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description
      Compressed
      Compressed label [RFC 1035]
      Extended
      Extended label [RFC 2671]
      Standard
      Standard label [RFC 1035]
      Unknown
      This is unallocated.
    • Field Summary

      Fields 
      Modifier and Type Field Description
      private java.lang.String _externalName  
      private int _index  
      (package private) static int LABEL_MASK
      DNS label types are encoded on the first 2 bits
      (package private) static int LABEL_NOT_MASK  
    • Constructor Summary

      Constructors 
      Modifier Constructor Description
      private DNSLabel​(java.lang.String name, int index)  
    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.String externalName()
      Return the string representation of this type
      int indexValue()
      Return the numeric value of this type
      static DNSLabel labelForByte​(int index)  
      static int labelValue​(int index)  
      java.lang.String toString()  
      static DNSLabel valueOf​(java.lang.String name)
      Returns the enum constant of this type with the specified name.
      static DNSLabel[] 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, valueOf
      • Methods inherited from class java.lang.Object

        getClass, notify, notifyAll, wait, wait, wait
    • Enum Constant Detail

      • Unknown

        public static final DNSLabel Unknown
        This is unallocated.
      • Standard

        public static final DNSLabel Standard
        Standard label [RFC 1035]
      • Compressed

        public static final DNSLabel Compressed
        Compressed label [RFC 1035]
      • Extended

        public static final DNSLabel Extended
        Extended label [RFC 2671]
    • Field Detail

      • LABEL_MASK

        static final int LABEL_MASK
        DNS label types are encoded on the first 2 bits
        See Also:
        Constant Field Values
      • _externalName

        private final java.lang.String _externalName
      • _index

        private final int _index
    • Constructor Detail

      • DNSLabel

        private DNSLabel​(java.lang.String name,
                         int index)
    • Method Detail

      • values

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

        public static DNSLabel 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
      • externalName

        public java.lang.String externalName()
        Return the string representation of this type
        Returns:
        String
      • indexValue

        public int indexValue()
        Return the numeric value of this type
        Returns:
        String
      • labelForByte

        public static DNSLabel labelForByte​(int index)
        Parameters:
        index -
        Returns:
        label
      • labelValue

        public static int labelValue​(int index)
        Parameters:
        index -
        Returns:
        masked value
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Enum<DNSLabel>