Package org.neo4j.gds.core.compression.common

Class VarLongEncoding

java.lang.Object

org.neo4j.gds.core.compression.common.VarLongEncoding

public final class VarLongEncoding
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
static long	THRESHOLD_1_BYTE
static long	THRESHOLD_2_BYTE
static long	THRESHOLD_3_BYTE
static long	THRESHOLD_4_BYTE
static long	THRESHOLD_5_BYTE
static long	THRESHOLD_6_BYTE
static long	THRESHOLD_7_BYTE
static long	THRESHOLD_8_BYTE

Method Summary

Modifier and Type	Method	Description
static int	encodedVLongSize(long val)	The values are equivalent to: BitUtil.ceilDiv(64 - Long.numberOfLeadingZeros(nodeCount - 1), 7)
static int	encodedVLongsSize(long[] values, int limit)
static int	encodedVLongsSize(long[] values, int offset, int limit)
static int	encodeVLongs(long[] values, int limit, byte[] out, int into)
static int	encodeVLongs(long[] values, int offset, int end, byte[] out, int into)
static long	zigZag(long value)

Methods inherited from class java.lang.Object

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

Field Detail

THRESHOLD_1_BYTE

public static final long THRESHOLD_1_BYTE

See Also:

Constant Field Values

THRESHOLD_2_BYTE

public static final long THRESHOLD_2_BYTE

See Also:

Constant Field Values

THRESHOLD_3_BYTE

public static final long THRESHOLD_3_BYTE

See Also:

Constant Field Values

THRESHOLD_4_BYTE

public static final long THRESHOLD_4_BYTE

See Also:

Constant Field Values

THRESHOLD_5_BYTE

public static final long THRESHOLD_5_BYTE

See Also:

Constant Field Values

THRESHOLD_6_BYTE

public static final long THRESHOLD_6_BYTE

See Also:

Constant Field Values

THRESHOLD_7_BYTE

public static final long THRESHOLD_7_BYTE

See Also:

Constant Field Values

THRESHOLD_8_BYTE

public static final long THRESHOLD_8_BYTE

See Also:

Constant Field Values

Method Detail

encodeVLongs

public static int encodeVLongs(long[] values,
                               int limit,
                               byte[] out,
                               int into)

encodedVLongsSize

public static int encodedVLongsSize(long[] values,
                                    int limit)

encodedVLongsSize

public static int encodedVLongsSize(long[] values,
                                    int offset,
                                    int limit)

encodeVLongs

public static int encodeVLongs(long[] values,
                               int offset,
                               int end,
                               byte[] out,
                               int into)

encodedVLongSize

public static int encodedVLongSize(long val)

The values are equivalent to: BitUtil.ceilDiv(64 - Long.numberOfLeadingZeros(nodeCount - 1), 7)

zigZag

public static long zigZag(long value)