Class SignificantBytesBE

java.lang.Object

org.eclipse.rdf4j.sail.lmdb.util.SignificantBytesBE

public final class SignificantBytesBE
extends Object

Fast reader for 1..8 "significant" big-endian bytes from a ByteBuffer. Chooses optimal path at runtime: - heap-backed buffers: raw array indexing (no per-byte virtual calls), - direct/read-only buffers: absolute wide reads + conditional byte-swap. Returns an unsigned value in the low bits of the long (0 .. 2^(8*n)-1).

Method Summary

Modifier and Type	Method	Description
static long	read(ByteBuffer bb, int n)	Read n (1..8) big-endian significant bytes from the buffer and advance position by n.
static long	readDirect(ByteBuffer bb, int n)

Methods inherited from class Object

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

Method Details

read

public static long read(ByteBuffer bb,
 int n)

Read n (1..8) big-endian significant bytes from the buffer and advance position by n.

Throws:

IllegalArgumentException - if n is not in [1,8]

BufferUnderflowException - if fewer than n bytes remain

readDirect

public static long readDirect(ByteBuffer bb,
 int n)