de.schlichtherle.util.zip
Class ULong

java.lang.Object
  de.schlichtherle.util.zip.ULong

final class ULong
extends Object

Provides constants and static utility methods for unsigned long integer values (63 bits).

This class is safe for multithreading.

Since:

TrueZIP 6.7

Version:

$Id: ULong.java 5e709f50671d 2010/11/05 11:52:07 christian $

Author:

Christian Schlichtherle

Field Summary

static long	MAX_VALUE The maximum value of an unsigned long integer, which is 9223372036854775807L.
static long	MIN_VALUE The minimum value of an unsigned long integer, which is 0L.
static int	SIZE The number of bits used to represent an unsigned long integer in binary form, which is 63.

Constructor Summary

private

ULong() This class cannot get instantiated.

Method Summary

static void	check(long l) Checks the parameter range.
static void	check(long l, String subject, String error) Checks the parameter range.

Methods inherited from class java.lang.Object

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

Field Detail

MIN_VALUE

public static final long MIN_VALUE

The minimum value of an unsigned long integer, which is 0L.

See Also:

Constant Field Values

MAX_VALUE

public static final long MAX_VALUE

The maximum value of an unsigned long integer, which is 9223372036854775807L.

See Also:

Constant Field Values

SIZE

public static final int SIZE

The number of bits used to represent an unsigned long integer in binary form, which is 63.

See Also:

Constant Field Values

Constructor Detail

ULong

private ULong()

This class cannot get instantiated.

Method Detail

check

public static void check(long l,
                         String subject,
                         String error)
                  throws IllegalArgumentException

Checks the parameter range.

Parameters:

l - The long integer to check to be in the range of an unsigned long integer (63 bits).

subject - The subject of the exception message - may be null. This should not end with a punctuation character.

error - First sentence of the exception message - may be null. This should not end with a punctuation character.

Throws:

IllegalArgumentException - If l is less than MIN_VALUE or greater than MAX_VALUE.

check

public static void check(long l)
                  throws IllegalArgumentException

Checks the parameter range.

Parameters:

l - The long integer to check to be in the range of an unsigned long integer (63 bits).

Throws:

IllegalArgumentException - If l is less than MIN_VALUE or greater than MAX_VALUE.