org.xbill.DNS

Class DClass

java.lang.Object

org.xbill.DNS.DClass

public final class DClass
extends java.lang.Object

Constants and functions relating to DNS classes. This is called DClass to avoid confusion with Class.

Author:

Brian Wellington

Field Summary

Fields

Modifier and Type	Field and Description
static int	ANY Matches any class
static int	CH Chaos network (MIT)
static int	CHAOS Chaos network (MIT, alternate name)
static int	HESIOD Hesiod name server (MIT, alternate name)
static int	HS Hesiod name server (MIT)
static int	IN Internet
static int	NONE Special value used in dynamic update messages

Method Summary

Methods

Modifier and Type	Method and Description
static void	check(int i) Checks that a numeric DClass is valid.
static java.lang.String	string(int i) Converts a numeric DClass into a String
static int	value(java.lang.String s) Converts a String representation of a DClass into its numeric value

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

IN

public static final int IN

Internet

See Also:

Constant Field Values

CH

public static final int CH

Chaos network (MIT)

See Also:

Constant Field Values

CHAOS

public static final int CHAOS

Chaos network (MIT, alternate name)

See Also:

Constant Field Values

HS

public static final int HS

Hesiod name server (MIT)

See Also:

Constant Field Values

HESIOD

public static final int HESIOD

Hesiod name server (MIT, alternate name)

See Also:

Constant Field Values

NONE

public static final int NONE

Special value used in dynamic update messages

See Also:

Constant Field Values

ANY

public static final int ANY

Matches any class

See Also:

Constant Field Values

Method Detail

check

public static void check(int i)

Checks that a numeric DClass is valid.

Throws:

InvalidDClassException - The class is out of range.

string

public static java.lang.String string(int i)

Converts a numeric DClass into a String

Returns:

The canonical string representation of the class

Throws:

InvalidDClassException - The class is out of range.

value

public static int value(java.lang.String s)

Converts a String representation of a DClass into its numeric value

Returns:

The class code, or -1 on error.