Package org.apache.lucene.codecs

Class PointsReader

java.lang.Object

org.apache.lucene.codecs.PointsReader

All Implemented Interfaces:

Closeable, AutoCloseable, Accountable

Direct Known Subclasses:

Lucene60PointsReader, Lucene86PointsReader, SimpleTextPointsReader

public abstract class PointsReader
extends Object
implements Closeable, Accountable

Abstract API to visit point values.

Field Summary

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

NULL_ACCOUNTABLE

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	PointsReader()	Sole constructor.

Method Summary

Modifier and Type	Method	Description
abstract void	checkIntegrity()	Checks consistency of this reader.
PointsReader	getMergeInstance()	Returns an instance optimized for merging.
abstract PointValues	getValues(String field)	Return PointValues for the given field.

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

Methods inherited from interface java.io.Closeable

close

Constructor Details

PointsReader

protected PointsReader()

Sole constructor. (For invocation by subclass constructors, typically implicit.)

Method Details

checkIntegrity

public abstract void checkIntegrity()
                             throws IOException

Checks consistency of this reader.

Note that this may be costly in terms of I/O, e.g. may involve computing a checksum value against large data files.

Throws:

IOException

getValues

public abstract PointValues getValues(String field)
                               throws IOException

Return PointValues for the given field.

Throws:

IOException

getMergeInstance

public PointsReader getMergeInstance()

Returns an instance optimized for merging. This instance may only be used in the thread that acquires it.

The default implementation returns this