Package org.apache.cassandra.io.util

Class SizedInts

java.lang.Object

org.apache.cassandra.io.util.SizedInts

public class SizedInts
extends Object

Utility class for sizing, writing and reading ints with length stored separately. Used for trie payloads.

Constructor Summary

Constructors

Constructor	Description
SizedInts()

Method Summary

Modifier and Type	Method	Description
static int	nonZeroSize(long value)	Returns the number of bytes we need to store the given position.
static long	read(ByteBuffer src, int startPos, int bytes)
static long	readUnsigned(ByteBuffer src, int startPos, int bytes)
static int	sizeAllowingZero(long value)	Returns the number of bytes we need to store the given position.
static void	write(DataOutputPlus dest, long value, int size)

Methods inherited from class java.lang.Object

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

Constructor Details

SizedInts

public SizedInts()

Method Details

nonZeroSize

public static int nonZeroSize(long value)

Returns the number of bytes we need to store the given position. This method understands 0 to need 1 byte.

If your use case permits 0 to be encoded in 0 length, use sizeAllowingZero(long) below.

sizeAllowingZero

public static int sizeAllowingZero(long value)

Returns the number of bytes we need to store the given position. Returns 0 for 0 argument.

read

public static long read(ByteBuffer src,
 int startPos,
 int bytes)

readUnsigned

public static long readUnsigned(ByteBuffer src,
 int startPos,
 int bytes)

write

public static void write(DataOutputPlus dest,
 long value,
 int size)
                  throws IOException

Throws:

IOException