org.sindice.siren.index.codecs.siren10

Class Siren10SkipListWriter

java.lang.Object

org.apache.lucene.codecs.MultiLevelSkipListWriter

org.sindice.siren.index.codecs.siren10.Siren10SkipListWriter

public class Siren10SkipListWriter
extends org.apache.lucene.codecs.MultiLevelSkipListWriter

Implementation of the MultiLevelSkipListWriter for the default block-based posting list format of SIREn 1.0.

Compared to the original Lucene format, this skip list is only storing the document identifiers and the file pointer of the block within the .doc file.

The MultiLevelSkipListWriter implementation is based on document count, but it is used here with block count instead of document count. In order to make it compatible with block, this class is converting document count into block count.

Field Summary

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

numberOfSkipLevels

Method Summary

Methods

Modifier and Type	Method and Description
protected void	resetSkip(BlockIndexOutput.Index topDocIndex) Called at start of new term
protected void	writeSkipData(int level, org.apache.lucene.store.IndexOutput skipBuffer)

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

bufferSkip, init, resetSkip, writeSkip

Methods inherited from class java.lang.Object

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

Method Detail

resetSkip

protected void resetSkip(BlockIndexOutput.Index topDocIndex)
                  throws IOException

Called at start of new term

Throws:

IOException

writeSkipData

protected void writeSkipData(int level,
                 org.apache.lucene.store.IndexOutput skipBuffer)
                      throws IOException

Specified by:

writeSkipData in class org.apache.lucene.codecs.MultiLevelSkipListWriter

Throws:

IOException