| java.lang.Object
 org.xbill.DNS.Serial
| Serial | | final public class Serial (Code) | | Helper functions for doing serial arithmetic. These should be used when
setting/checking SOA serial numbers. SOA serial number arithmetic is
defined in RFC 1982.
author:
Brian Wellington |
| Method Summary | |
| public static int | compare(long serial1, long serial2)
Compares two numbers using serial arithmetic. | | public static long | increment(long serial)
Increments a serial number. |
| compare | | public static int compare(long serial1, long serial2)(Code) | | Compares two numbers using serial arithmetic. The numbers are assumed
to be 32 bit unsigned integers stored in longs.
Parameters:
serial1 - The first integer
Parameters:
serial2 - The second integer 0 if the 2 numbers are equal, a positive number if serial1 is greaterthan serial2, and a negative number if serial2 is greater than serial1.
throws:
IllegalArgumentException - serial1 or serial2 is out of range |
| increment | | public static long increment(long serial)(Code) | | Increments a serial number. The number is assumed to be a 32 bit unsigned
integer stored in a long. This basically adds 1 and resets the value to
0 if it is 2^32.
Parameters:
serial - The serial number The incremented serial number
throws:
IllegalArgumentException - serial is out of range |
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