Package org.apache.lucene.index

Class VectorValuesWriter

java.lang.Object

org.apache.lucene.index.VectorValuesWriter

class VectorValuesWriter
extends java.lang.Object

Buffers up pending vector value(s) per doc, then flushes when segment flushes.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	VectorValuesWriter.BufferedVectorValues
(package private) static class	VectorValuesWriter.SortingVectorValues

Field Summary

Fields

Modifier and Type	Field	Description
private long	bytesUsed
private DocsWithFieldSet	docsWithField
private FieldInfo	fieldInfo
private Counter	iwBytesUsed
private int	lastDocID
private java.util.List<float[]>	vectors

Constructor Summary

Constructors

Constructor	Description
VectorValuesWriter(FieldInfo fieldInfo, Counter iwBytesUsed)

Method Summary

Modifier and Type	Method	Description
void	addValue(int docID, float[] vectorValue)	Adds a value for the given document.
void	flush(Sorter.DocMap sortMap, KnnVectorsWriter knnVectorsWriter)	Flush this field's values to storage, sorting the values in accordance with sortMap
private void	updateBytesUsed()

Methods inherited from class java.lang.Object

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

Field Detail

fieldInfo

private final FieldInfo fieldInfo

iwBytesUsed

private final Counter iwBytesUsed

vectors

private final java.util.List<float[]> vectors

docsWithField

private final DocsWithFieldSet docsWithField

lastDocID

private int lastDocID

bytesUsed

private long bytesUsed

Constructor Detail

VectorValuesWriter

VectorValuesWriter(FieldInfo fieldInfo,
                   Counter iwBytesUsed)

Method Detail

addValue

public void addValue(int docID,
                     float[] vectorValue)

Adds a value for the given document. Only a single value may be added.

Parameters:

docID - the value is added to this document

vectorValue - the value to add

Throws:

java.lang.IllegalArgumentException - if a value has already been added to the given document

updateBytesUsed

private void updateBytesUsed()

flush

public void flush(Sorter.DocMap sortMap,
                  KnnVectorsWriter knnVectorsWriter)
           throws java.io.IOException

Flush this field's values to storage, sorting the values in accordance with sortMap

Parameters:

sortMap - specifies the order of documents being flushed, or null if they are to be flushed in docid order

knnVectorsWriter - the Codec's vector writer that handles the actual encoding and I/O

Throws:

java.io.IOException - if there is an error writing the field and its values