Package org.apache.lucene.util.packed

Class BlockPackedReaderIterator

java.lang.Object

org.apache.lucene.util.packed.BlockPackedReaderIterator

public final class BlockPackedReaderIterator
extends java.lang.Object

Reader for sequences of longs written with BlockPackedWriter.

See Also:

BlockPackedWriter

Constructor Summary

Constructors

Constructor	Description
BlockPackedReaderIterator(DataInput in, int packedIntsVersion, int blockSize, long valueCount)	Sole constructor.

Method Summary

Modifier and Type	Method	Description
long	next()	Read the next value.
LongsRef	next(int count)	Read between 1 and count values.
long	ord()	Return the offset of the next value to read.
void	reset(DataInput in, long valueCount)	Reset the current reader to wrap a stream of valueCount values contained in in.
void	skip(long count)	Skip exactly count values.

Methods inherited from class java.lang.Object

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

Constructor Detail

BlockPackedReaderIterator

public BlockPackedReaderIterator(DataInput in,
                                 int packedIntsVersion,
                                 int blockSize,
                                 long valueCount)

Sole constructor.

Parameters:

blockSize - the number of values of a block, must be equal to the block size of the BlockPackedWriter which has been used to write the stream

Method Detail

reset

public void reset(DataInput in,
                  long valueCount)

Reset the current reader to wrap a stream of valueCount values contained in in. The block size remains unchanged.

skip

public void skip(long count)
          throws java.io.IOException

Skip exactly count values.

Throws:

java.io.IOException

next

public long next()
          throws java.io.IOException

Read the next value.

Throws:

java.io.IOException

next

public LongsRef next(int count)
              throws java.io.IOException

Read between 1 and count values.

Throws:

java.io.IOException

ord

public long ord()

Return the offset of the next value to read.