Package org.elasticsearch.search.fetch.subphase

Class FieldFetcher

java.lang.Object

org.elasticsearch.search.fetch.subphase.FieldFetcher

public class FieldFetcher
extends Object

A helper class to FetchFieldsPhase that's initialized with a list of field patterns to fetch. Then given a specific document, it can retrieve the corresponding fields from the document's source.

Constructor Summary

Constructors

Constructor	Description
FieldFetcher(Map<String,org.elasticsearch.search.fetch.subphase.FieldFetcher.FieldContext> fieldContexts, org.apache.lucene.util.automaton.CharacterRunAutomaton unmappedFieldsFetchAutomaton, List<String> unmappedConcreteFields)

Method Summary

Modifier and Type	Method	Description
static FieldFetcher	create(SearchExecutionContext context, Collection<FieldAndFormat> fieldAndFormats)
Map<String,DocumentField>	fetch(SourceLookup sourceLookup)
void	setNextReader(org.apache.lucene.index.LeafReaderContext readerContext)

Methods inherited from class java.lang.Object

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

Constructor Details

FieldFetcher

public FieldFetcher(Map<String,org.elasticsearch.search.fetch.subphase.FieldFetcher.FieldContext> fieldContexts,
 @Nullable
 org.apache.lucene.util.automaton.CharacterRunAutomaton unmappedFieldsFetchAutomaton,
 @Nullable
 List<String> unmappedConcreteFields)

Method Details

create

public static FieldFetcher create(SearchExecutionContext context,
 Collection<FieldAndFormat> fieldAndFormats)

fetch

public Map<String,DocumentField> fetch(SourceLookup sourceLookup)
                                throws IOException

Throws:

IOException

setNextReader

public void setNextReader(org.apache.lucene.index.LeafReaderContext readerContext)