Module org.elasticsearch.server

Package org.elasticsearch.index.codec

Class ForUtil

java.lang.Object

org.elasticsearch.index.codec.ForUtil

public final class ForUtil
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final int	BLOCK_SIZE

Method Summary

Modifier and Type	Method	Description
static void	decode(int bitsPerValue, org.apache.lucene.store.DataInput in, long[] longs)	Decode 128 integers into longs.
static void	decodeTo32(int bitsPerValue, org.apache.lucene.store.DataInput in, long[] longs)	Decodes 128 integers into 64 longs such that each long contains two values, each represented with 32 bits.
static void	encode(long[] longs, int bitsPerValue, org.apache.lucene.store.DataOutput out)	Encode 128 integers from longs into out.
static int	numBytes(int bitsPerValue)	Number of bytes required to encode 128 integers of bitsPerValue bits per value.

Methods inherited from class java.lang.Object

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

Field Details

BLOCK_SIZE

public static final int BLOCK_SIZE

See Also:

• Constant Field Values

Method Details

encode

public static void encode(long[] longs,
 int bitsPerValue,
 org.apache.lucene.store.DataOutput out)
                   throws IOException

Encode 128 integers from longs into out.

Throws:

IOException

numBytes

public static int numBytes(int bitsPerValue)

Number of bytes required to encode 128 integers of bitsPerValue bits per value.

decode

public static void decode(int bitsPerValue,
 org.apache.lucene.store.DataInput in,
 long[] longs)
                   throws IOException

Decode 128 integers into longs.

Throws:

IOException

decodeTo32

public static void decodeTo32(int bitsPerValue,
 org.apache.lucene.store.DataInput in,
 long[] longs)
                       throws IOException

Decodes 128 integers into 64 longs such that each long contains two values, each represented with 32 bits. Values [0..63] are encoded in the high-order bits of longs [0..63], and values [64..127] are encoded in the low-order bits of longs [0..63]. This representation may allow subsequent operations to be performed on two values at a time.

Throws:

IOException