javax.jmdns.impl.constants
Enum DNSRecordClass

java.lang.Object
  java.lang.Enum<DNSRecordClass>
      javax.jmdns.impl.constants.DNSRecordClass

All Implemented Interfaces:

Serializable, Comparable<DNSRecordClass>

public enum DNSRecordClass
extends Enum<DNSRecordClass>

DNS Record Class

Author:

Arthur van Hoff, Jeff Sonstein, Werner Randelshofer, Pierre Frisch, Rick Blair

Enum Constant Summary

CLASS_ANY
Not a DNS class, but a DNS query class, meaning "all classes"

CLASS_CH
CHAOS

CLASS_CS
CSNET

CLASS_HS
Hesiod

CLASS_IN
static final Internet

CLASS_NONE
Used in DNS UPDATE [RFC 2136]

CLASS_UNKNOWN

Field Summary

static int	CLASS_MASK Multicast DNS uses the bottom 15 bits to identify the record class... Except for pseudo records like OPT.
static int	CLASS_UNIQUE For answers the top bit indicates that all other cached records are now invalid. For questions it indicates that we should send a unicast response.
static boolean	NOT_UNIQUE
static boolean	UNIQUE

Method Summary

static DNSRecordClass	classForIndex(int index)
static DNSRecordClass	classForName(String name)
String	externalName() Return the string representation of this type
int	indexValue() Return the numeric value of this type
boolean	isUnique(int index) Checks if the class is unique
String	toString()
static DNSRecordClass	valueOf(String name) Returns the enum constant of this type with the specified name.
static DNSRecordClass[]	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

CLASS_UNKNOWN

public static final DNSRecordClass CLASS_UNKNOWN

CLASS_IN

public static final DNSRecordClass CLASS_IN

static final Internet

CLASS_CS

public static final DNSRecordClass CLASS_CS

CSNET

CLASS_CH

public static final DNSRecordClass CLASS_CH

CHAOS

CLASS_HS

public static final DNSRecordClass CLASS_HS

Hesiod

CLASS_NONE

public static final DNSRecordClass CLASS_NONE

Used in DNS UPDATE [RFC 2136]

CLASS_ANY

public static final DNSRecordClass CLASS_ANY

Not a DNS class, but a DNS query class, meaning "all classes"

Field Detail

CLASS_MASK

public static final int CLASS_MASK

Multicast DNS uses the bottom 15 bits to identify the record class...
Except for pseudo records like OPT.

See Also:

Constant Field Values

CLASS_UNIQUE

public static final int CLASS_UNIQUE

For answers the top bit indicates that all other cached records are now invalid.
For questions it indicates that we should send a unicast response.

See Also:

Constant Field Values

UNIQUE

public static final boolean UNIQUE

See Also:

Constant Field Values

NOT_UNIQUE

public static final boolean NOT_UNIQUE

See Also:

Constant Field Values

Method Detail

values

public static DNSRecordClass[] 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 (DNSRecordClass c : DNSRecordClass.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DNSRecordClass 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

externalName

public String externalName()

Return the string representation of this type

Returns:

String

indexValue

public int indexValue()

Return the numeric value of this type

Returns:

String

isUnique

public boolean isUnique(int index)

Checks if the class is unique

Parameters:

index -

Returns:

true is the class is unique, false otherwise.

classForName

public static DNSRecordClass classForName(String name)

Parameters:

name -

Returns:

class for name

classForIndex

public static DNSRecordClass classForIndex(int index)

Parameters:

index -

Returns:

class for name

toString

public String toString()

Overrides:

toString in class Enum<DNSRecordClass>