Package org.apache.lucene.codecs

Class StoredFieldsReader

java.lang.Object

org.apache.lucene.index.StoredFields

org.apache.lucene.codecs.StoredFieldsReader

All Implemented Interfaces:

Closeable, AutoCloseable, Cloneable

Direct Known Subclasses:

Lucene90CompressingStoredFieldsReader

public abstract class StoredFieldsReader
extends StoredFields
implements Cloneable, Closeable

Codec API for reading stored fields.

You need to implement StoredFields.document(int, StoredFieldVisitor) to read the stored fields for a document, implement clone() (creating clones of any IndexInputs used, etc), and Closeable.close()

WARNING: This API is experimental and might change in incompatible ways in the next release.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	StoredFieldsReader()	Sole constructor.

Method Summary

Modifier and Type	Method	Description
abstract void	checkIntegrity()	Checks consistency of this reader.
abstract StoredFieldsReader	clone()
StoredFieldsReader	getMergeInstance()	Returns an instance optimized for merging.

Methods inherited from class org.apache.lucene.index.StoredFields

document, document, document, prefetch

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.io.Closeable

close

Constructor Details

StoredFieldsReader

protected StoredFieldsReader()

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

Method Details

clone

public abstract StoredFieldsReader clone()

Overrides:

clone in class Object

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

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

getMergeInstance

public StoredFieldsReader getMergeInstance()

Returns an instance optimized for merging. This instance may not be cloned.

The default implementation returns this