Package org.elasticsearch.index.mapper

Class CompletionFieldMapper

java.lang.Object

org.elasticsearch.index.mapper.Mapper

org.elasticsearch.index.mapper.FieldMapper

org.elasticsearch.index.mapper.CompletionFieldMapper

All Implemented Interfaces:

Cloneable, Iterable<Mapper>, ToXContent, ToXContentFragment, ArrayValueMapperParser

public class CompletionFieldMapper
extends FieldMapper
implements ArrayValueMapperParser

Mapper for completion field. The field values are indexed as a weighted FST for fast auto-completion/search-as-you-type functionality.
Type properties:

• "analyzer": "simple", (default)
• "search_analyzer": "simple", (default)
• "preserve_separators" : true, (default)
• "preserve_position_increments" : true (default)
• "min_input_length": 50 (default)
• "contexts" : CONTEXTS

see ContextMappings.load(Object, Version) for CONTEXTS
see parse(ParseContext) for acceptable inputs for indexing

This field type constructs completion queries that are run against the weighted FST index by the CompletionSuggester. This field can also be extended to add search criteria to suggestions for query-time filtering and boosting (see ContextMappings

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	CompletionFieldMapper.Builder	Builder for CompletionFieldMapper
static class	CompletionFieldMapper.CompletionFieldType
static class	CompletionFieldMapper.Defaults
static class	CompletionFieldMapper.Fields
static class	CompletionFieldMapper.TypeParser

Nested classes/interfaces inherited from class org.elasticsearch.index.mapper.FieldMapper

FieldMapper.CopyTo, FieldMapper.MultiFields

Nested classes/interfaces inherited from class org.elasticsearch.index.mapper.Mapper

Mapper.BuilderContext

Nested classes/interfaces inherited from interface org.elasticsearch.common.xcontent.ToXContent

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Field Summary

Fields

Modifier and Type	Field	Description
static Set<String>	ALLOWED_CONTENT_FIELD_NAMES
static String	CONTENT_TYPE

Fields inherited from class org.elasticsearch.index.mapper.FieldMapper

COERCE_SETTING, copyTo, defaultFieldType, fieldType, IGNORE_MALFORMED_SETTING, indexCreatedVersion, multiFields

Fields inherited from interface org.elasticsearch.common.xcontent.ToXContent

EMPTY_PARAMS

Constructor Summary

Constructors

Constructor	Description
CompletionFieldMapper(String simpleName, MappedFieldType fieldType, Settings indexSettings, FieldMapper.MultiFields multiFields, FieldMapper.CopyTo copyTo, int maxInputLength)

Method Summary

Modifier and Type	Method	Description
protected String	contentType()
protected void	doMerge(Mapper mergeWith)	Merge changes coming from mergeWith in place.
CompletionFieldMapper.CompletionFieldType	fieldType()
void	parse(ParseContext context)	Parses and indexes inputs Parsing: Acceptable format: "STRING" - interpreted as field value (input) "ARRAY" - each element can be one of "OBJECT" (see below) "OBJECT" - { "input": STRING|ARRAY, "weight": STRING|INT, "contexts": ARRAY|OBJECT } Indexing: if context mappings are defined, delegates to ContextMappings.addField(ParseContext.Document, String, String, int, Map) else adds inputs as a SuggestField
protected void	parseCreateField(ParseContext context, List<IndexableField> fields)	Parse the field value and populate fields.
XContentBuilder	toXContent(XContentBuilder builder, ToXContent.Params params)

Methods inherited from class org.elasticsearch.index.mapper.FieldMapper

clone, copyTo, createFieldNamesField, doXContentAnalyzers, doXContentBody, doXContentDocValues, indexOptionToString, iterator, merge, name, termVectorOptionsToString, typeName, updateFieldType

Methods inherited from class org.elasticsearch.index.mapper.Mapper

simpleName

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.elasticsearch.common.xcontent.ToXContentFragment

isFragment

Field Detail

CONTENT_TYPE

public static final String CONTENT_TYPE

See Also:

Constant Field Values

ALLOWED_CONTENT_FIELD_NAMES

public static final Set<String> ALLOWED_CONTENT_FIELD_NAMES

Constructor Detail

CompletionFieldMapper

public CompletionFieldMapper(String simpleName,
                             MappedFieldType fieldType,
                             Settings indexSettings,
                             FieldMapper.MultiFields multiFields,
                             FieldMapper.CopyTo copyTo,
                             int maxInputLength)

Method Detail

fieldType

public CompletionFieldMapper.CompletionFieldType fieldType()

Overrides:

fieldType in class FieldMapper

parse

public void parse(ParseContext context)
           throws IOException

Parses and indexes inputs Parsing: Acceptable format: "STRING" - interpreted as field value (input) "ARRAY" - each element can be one of "OBJECT" (see below) "OBJECT" - { "input": STRING|ARRAY, "weight": STRING|INT, "contexts": ARRAY|OBJECT } Indexing: if context mappings are defined, delegates to ContextMappings.addField(ParseContext.Document, String, String, int, Map) else adds inputs as a SuggestField

Overrides:

parse in class FieldMapper

Throws:

IOException

toXContent

public XContentBuilder toXContent(XContentBuilder builder,
                                  ToXContent.Params params)
                           throws IOException

Specified by:

toXContent in interface ToXContent

Overrides:

toXContent in class FieldMapper

Throws:

IOException

parseCreateField

protected void parseCreateField(ParseContext context,
                                List<IndexableField> fields)
                         throws IOException

Description copied from class: FieldMapper

Parse the field value and populate fields. Implementations of this method should ensure that on failing to parse parser.currentToken() must be the current failing token

Specified by:

parseCreateField in class FieldMapper

Throws:

IOException

contentType

protected String contentType()

Specified by:

contentType in class FieldMapper

doMerge

protected void doMerge(Mapper mergeWith)

Description copied from class: FieldMapper

Merge changes coming from mergeWith in place.

Overrides:

doMerge in class FieldMapper