Bits
Manipulations with bytes and arrays. This class can be overridden in
multi-release JAR with more efficient implementation for a newer versions of
Java.
| Methods |
|---|
| static int |
compareNotNullSigned(byte[] data1, byte[] data2)
Compare the contents of two byte arrays.
|
| static int |
compareNotNullSigned(byte[] data1, byte[] data2)
Compare the contents of two byte arrays. If the content or length of the
first array is smaller than the second array, -1 is returned. If the content
or length of the second array is smaller than the first array, 1 is returned.
If the contents and lengths are the same, 0 is returned.
This method interprets bytes as signed.
Parameters:
data1 - the first byte array (must not be null)
data2 - the second byte array (must not be null)
Returns:
the result of the comparison (-1, 1 or 0)
|
| static int |
compareNotNullUnsigned(byte[] data1, byte[] data2)
Compare the contents of two byte arrays.
|
| static int |
compareNotNullUnsigned(byte[] data1, byte[] data2)
Compare the contents of two byte arrays. If the content or length of the
first array is smaller than the second array, -1 is returned. If the content
or length of the second array is smaller than the first array, 1 is returned.
If the contents and lengths are the same, 0 is returned.
This method interprets bytes as unsigned.
Parameters:
data1 - the first byte array (must not be null)
data2 - the second byte array (must not be null)
Returns:
the result of the comparison (-1, 1 or 0)
|
| static int |
readInt(byte[] buff, int pos)
Reads a int value from the byte array at the given position in big-endian
order.
|
| static int |
readInt(byte[] buff, int pos)
Reads a int value from the byte array at the given position in big-endian
order.
Parameters:
buff - the byte array
pos - the position
Returns:
the value
|
| static long |
readLong(byte[] buff, int pos)
Reads a long value from the byte array at the given position in big-endian
order.
|
| static long |
readLong(byte[] buff, int pos)
Reads a long value from the byte array at the given position in big-endian
order.
Parameters:
buff - the byte array
pos - the position
Returns:
the value
|
| static byte[] |
uuidToBytes(long msb, long lsb)
Converts UUID value to byte array in big-endian order.
|
| static byte[] |
uuidToBytes(long msb, long lsb)
Converts UUID value to byte array in big-endian order.
Parameters:
msb - most significant part of UUID
lsb - least significant part of UUID
Returns:
byte array representation
|
| static byte[] |
uuidToBytes(UUID uuid)
Converts UUID value to byte array in big-endian order.
|
| static byte[] |
uuidToBytes(UUID uuid)
Converts UUID value to byte array in big-endian order.
Parameters:
uuid - UUID value
Returns:
byte array representation
|
| static void |
writeInt(byte[] buff, int pos, int x)
Writes a int value to the byte array at the given position in big-endian
order.
|
| static void |
writeInt(byte[] buff, int pos, int x)
Writes a int value to the byte array at the given position in big-endian
order.
Parameters:
buff - the byte array
pos - the position
x - the value to write
|
| static void |
writeLong(byte[] buff, int pos, long x)
Writes a long value to the byte array at the given position in big-endian
order.
|
| static void |
writeLong(byte[] buff, int pos, long x)
Writes a long value to the byte array at the given position in big-endian
order.
Parameters:
buff - the byte array
pos - the position
x - the value to write
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