org.sindice.siren.index.codecs.siren10

Class NodBlockIndexOutput.NodBlockWriter

java.lang.Object

org.sindice.siren.index.codecs.block.BlockIndexOutput.BlockWriter

org.sindice.siren.index.codecs.siren10.NodBlockIndexOutput.NodBlockWriter

Enclosing class:

NodBlockIndexOutput

protected class NodBlockIndexOutput.NodBlockWriter
extends BlockIndexOutput.BlockWriter

Implementation of the BlockWriter for the .nod file.

Encode and write blocks containing the node labels and term frequencies.

TODO: Can we try to reduce the number of test conditions for buffer size by using term frequency information ? At each new document, nodBlockWriter is informed of the term frequency, and check buffer size appropriately.

Constructor Summary

Constructors

Constructor and Description
NodBlockIndexOutput.NodBlockWriter()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	compress() Compress the data block
protected void	initBlock() Init writer for new block
boolean	isEmpty()
boolean	isFull()
protected void	resetCurrentNode()
void	write(org.apache.lucene.util.IntsRef node) Add a node label to the buffer.
protected void	writeData() Write compressed data block to the output file
protected void	writeHeader() Write block header to the output file
void	writeTermFreq(int termFreq) Add the term frequency within the current node to the buffer

Methods inherited from class org.sindice.siren.index.codecs.block.BlockIndexOutput.BlockWriter

flush, getMinimumBufferSize, writeBlock

Methods inherited from class java.lang.Object

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

Constructor Detail

NodBlockIndexOutput.NodBlockWriter

public NodBlockIndexOutput.NodBlockWriter()

Method Detail

write

public void write(org.apache.lucene.util.IntsRef node)

Add a node label to the buffer.

writeTermFreq

public void writeTermFreq(int termFreq)

Add the term frequency within the current node to the buffer

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in class BlockIndexOutput.BlockWriter

isFull

public boolean isFull()

Specified by:

isFull in class BlockIndexOutput.BlockWriter

writeHeader

protected void writeHeader()
                    throws IOException

Description copied from class: BlockIndexOutput.BlockWriter

Write block header to the output file

Specified by:

writeHeader in class BlockIndexOutput.BlockWriter

Throws:

IOException

compress

protected void compress()

Description copied from class: BlockIndexOutput.BlockWriter

Compress the data block

Specified by:

compress in class BlockIndexOutput.BlockWriter

writeData

protected void writeData()
                  throws IOException

Description copied from class: BlockIndexOutput.BlockWriter

Write compressed data block to the output file

Specified by:

writeData in class BlockIndexOutput.BlockWriter

Throws:

IOException

initBlock

protected void initBlock()

Description copied from class: BlockIndexOutput.BlockWriter

Init writer for new block

Specified by:

initBlock in class BlockIndexOutput.BlockWriter

resetCurrentNode

protected void resetCurrentNode()