Module org.elasticsearch.server

Package org.elasticsearch.index.mapper

Class BlockLoaderStoredFieldsFromLeafLoader

java.lang.Object

org.elasticsearch.index.mapper.BlockLoaderStoredFieldsFromLeafLoader

All Implemented Interfaces:

BlockLoader.StoredFields

public class BlockLoaderStoredFieldsFromLeafLoader
extends Object
implements BlockLoader.StoredFields

Constructor Summary

Constructors

Constructor	Description
BlockLoaderStoredFieldsFromLeafLoader(LeafStoredFieldLoader loader, SourceLoader.Leaf sourceLoader)

Method Summary

Modifier and Type	Method	Description
void	advanceTo(int docId)
String	id()
long	lastSourceBytesSize()	Returns the raw byte size of the last loaded _source.
boolean	loaded()	Whether stored fields have already been loaded for the current document.
void	releaseParsedSource()	Releases the cached parsed source to allow immediate garbage collection of large String objects created during source parsing.
String	routing()
Source	source()	The _source of the document.
Map<String,List<Object>>	storedFields()

Methods inherited from class java.lang.Object

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

Constructor Details

BlockLoaderStoredFieldsFromLeafLoader

public BlockLoaderStoredFieldsFromLeafLoader(LeafStoredFieldLoader loader,
 SourceLoader.Leaf sourceLoader)

Method Details

advanceTo

public void advanceTo(int docId)

source

public Source source()
              throws IOException

Description copied from interface: BlockLoader.StoredFields

The _source of the document.

Specified by:

source in interface BlockLoader.StoredFields

Throws:

IOException

id

public String id()
          throws IOException

Specified by:

id in interface BlockLoader.StoredFields

Returns:

the ID for the current document

Throws:

IOException

routing

public String routing()
               throws IOException

Specified by:

routing in interface BlockLoader.StoredFields

Returns:

the routing path for the current document

Throws:

IOException

storedFields

public Map<String,List<Object>> storedFields()
                                      throws IOException

Specified by:

storedFields in interface BlockLoader.StoredFields

Returns:

stored fields for the current document

Throws:

IOException

loaded

public boolean loaded()

Description copied from interface: BlockLoader.StoredFields

Whether stored fields have already been loaded for the current document. If the stored fields are not loaded yet, the block loader might avoid loading them when not needed.

Specified by:

loaded in interface BlockLoader.StoredFields

lastSourceBytesSize

public long lastSourceBytesSize()

Returns the raw byte size of the last loaded _source. This is useful for estimating the untracked memory overhead from source parsing (parsed Java Strings occupy approximately 2x the raw byte size due to UTF-16 encoding).

releaseParsedSource

public void releaseParsedSource()

Releases the cached parsed source to allow immediate garbage collection of large String objects created during source parsing. For a 5MB text field, the parsed Java String is ~10MB (UTF-16). Releasing it eagerly prevents accumulation of untracked memory that can cause OOM.