org.apache.lucene.codecs.lucene40
Class Lucene40SkipListReader

java.lang.Object
  org.apache.lucene.codecs.MultiLevelSkipListReader
      org.apache.lucene.codecs.lucene40.Lucene40SkipListReader

All Implemented Interfaces:

Closeable

Deprecated. Only for reading old 4.0 segments

@Deprecated
public class Lucene40SkipListReader
extends MultiLevelSkipListReader

Implements the skip list reader for the 4.0 posting list format that stores positions and payloads.

See Also:

Lucene40PostingsFormat

Field Summary

Fields inherited from class org.apache.lucene.codecs.MultiLevelSkipListReader

maxNumberOfSkipLevels, skipDoc

Constructor Summary

Lucene40SkipListReader(IndexInput skipStream, int maxSkipLevels, int skipInterval)
Deprecated. Sole constructor.

Method Summary

long	getFreqPointer() Deprecated. Returns the freq pointer of the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.
int	getOffsetLength() Deprecated. Returns the offset length (endOffset-startOffset) of the position stored just before the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.
int	getPayloadLength() Deprecated. Returns the payload length of the payload stored just before the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.
long	getProxPointer() Deprecated. Returns the prox pointer of the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.
void	init(long skipPointer, long freqBasePointer, long proxBasePointer, int df, boolean storesPayloads, boolean storesOffsets) Deprecated. Per-term initialization.
protected int	readSkipData(int level, IndexInput skipStream) Deprecated. Subclasses must implement the actual skip data encoding in this method.
protected void	seekChild(int level) Deprecated. Seeks the skip entry on the given level
protected void	setLastSkipData(int level) Deprecated. Copies the values of the last read skip entry on this level

Methods inherited from class org.apache.lucene.codecs.MultiLevelSkipListReader

close, getDoc, init, skipTo

Methods inherited from class java.lang.Object

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

Constructor Detail

Lucene40SkipListReader

public Lucene40SkipListReader(IndexInput skipStream,
                              int maxSkipLevels,
                              int skipInterval)

Deprecated.

Sole constructor.

Method Detail

init

public void init(long skipPointer,
                 long freqBasePointer,
                 long proxBasePointer,
                 int df,
                 boolean storesPayloads,
                 boolean storesOffsets)

Deprecated.

Per-term initialization.

getFreqPointer

public long getFreqPointer()

Deprecated.

Returns the freq pointer of the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.

getProxPointer

public long getProxPointer()

Deprecated.

Returns the prox pointer of the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.

getPayloadLength

public int getPayloadLength()

Deprecated.

Returns the payload length of the payload stored just before the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.

getOffsetLength

public int getOffsetLength()

Deprecated.

Returns the offset length (endOffset-startOffset) of the position stored just before the doc to which the last call of MultiLevelSkipListReader.skipTo(int) has skipped.

seekChild

protected void seekChild(int level)
                  throws IOException

Deprecated.

Description copied from class: MultiLevelSkipListReader

Seeks the skip entry on the given level

Overrides:

seekChild in class MultiLevelSkipListReader

Throws:

IOException

setLastSkipData

protected void setLastSkipData(int level)

Deprecated.

Description copied from class: MultiLevelSkipListReader

Copies the values of the last read skip entry on this level

Overrides:

setLastSkipData in class MultiLevelSkipListReader

readSkipData

protected int readSkipData(int level,
                           IndexInput skipStream)
                    throws IOException

Deprecated.

Description copied from class: MultiLevelSkipListReader

Subclasses must implement the actual skip data encoding in this method.

Specified by:

readSkipData in class MultiLevelSkipListReader

Parameters:

level - the level skip data shall be read from

skipStream - the skip stream to read from

Throws:

IOException