Package org.apache.lucene.codecs

Class KnnFieldVectorsWriter<T>

java.lang.Object

org.apache.lucene.codecs.KnnFieldVectorsWriter<T>

Type Parameters:

T - an array type; the type of vectors to be written

All Implemented Interfaces:

Accountable

Direct Known Subclasses:

FlatFieldVectorsWriter

public abstract class KnnFieldVectorsWriter<T>
extends Object
implements Accountable

Vectors' writer for a field

Field Summary

Fields inherited from interface org.apache.lucene.util.Accountable

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	KnnFieldVectorsWriter()	Sole constructor

Method Summary

Modifier and Type	Method	Description
abstract void	addValue(int docID, T vectorValue)	Add new docID with its vector value to the given field for indexing.
abstract T	copyValue(T vectorValue)	Used to copy values being indexed to internal storage.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.lucene.util.Accountable

getChildResources, ramBytesUsed

Constructor Details

KnnFieldVectorsWriter

protected KnnFieldVectorsWriter()

Sole constructor

Method Details

addValue

public abstract void addValue(int docID,
 T vectorValue)
                       throws IOException

Add new docID with its vector value to the given field for indexing. Doc IDs must be added in increasing order.

Throws:

IOException

copyValue

public abstract T copyValue(T vectorValue)

Used to copy values being indexed to internal storage.

Parameters:

vectorValue - an array containing the vector value to add

Returns:

a copy of the value; a new array