Package org.elasticsearch.search.suggest

Class SuggestionBuilder<T extends SuggestionBuilder<T>>

java.lang.Object

org.elasticsearch.search.suggest.SuggestionBuilder<T>

All Implemented Interfaces:

NamedWriteable, Writeable, ToXContent, ToXContentFragment

Direct Known Subclasses:

CompletionSuggestionBuilder, PhraseSuggestionBuilder, TermSuggestionBuilder

public abstract class SuggestionBuilder<T extends SuggestionBuilder<T>>
extends Object
implements NamedWriteable, ToXContentFragment

Base class for the different suggestion implementations.

Nested Class Summary

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

ToXContent.DelegatingMapParams, ToXContent.MapParams, ToXContent.Params

Nested classes/interfaces inherited from interface org.elasticsearch.common.io.stream.Writeable

Writeable.Reader<V>, Writeable.Writer<V>

Field Summary

Fields

Modifier and Type	Field	Description
protected String	analyzer
protected static ParseField	ANALYZER_FIELD
protected String	field
protected static ParseField	FIELDNAME_FIELD
protected String	prefix
protected static ParseField	PREFIX_FIELD
protected String	regex
protected static ParseField	REGEX_FIELD
protected Integer	shardSize
protected static ParseField	SHARDSIZE_FIELD
protected Integer	size
protected static ParseField	SIZE_FIELD
protected String	text
protected static ParseField	TEXT_FIELD

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

EMPTY_PARAMS

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SuggestionBuilder(String field)	Creates a new suggestion.
protected	SuggestionBuilder(String field, SuggestionBuilder<?> in)	internal copy constructor that copies over all class fields from second SuggestionBuilder except field name.
protected	SuggestionBuilder(StreamInput in)	Read from a stream.

Method Summary

Modifier and Type	Method	Description
String	analyzer()	get the analyzer() parameter
T	analyzer(String analyzer)	Sets the analyzer to analyse to suggest text with.
protected abstract SuggestionSearchContext.SuggestionContext	build(QueryShardContext context)
protected abstract boolean	doEquals(T other)	Indicates whether some other SuggestionBuilder of the same type is "equal to" this one.
protected abstract int	doHashCode()	HashCode for the subclass of SuggestionBuilder to implement.
protected abstract void	doWriteTo(StreamOutput out)
boolean	equals(Object obj)
String	field()	get the field() parameter
int	hashCode()
protected abstract XContentBuilder	innerToXContent(XContentBuilder builder, ToXContent.Params params)
protected void	populateCommonFields(MapperService mapperService, SuggestionSearchContext.SuggestionContext suggestionContext)	Transfers the text, prefix, regex, analyzer, field, size and shard size settings from the original SuggestionBuilder to the target SuggestionSearchContext.SuggestionContext
String	prefix()	get the prefix for this suggestion
protected T	prefix(String prefix)
String	regex()	get the regex for this suggestion
protected T	regex(String regex)
Integer	shardSize()	get the shardSize() parameter
T	shardSize(Integer shardSize)	Sets the maximum number of suggested term to be retrieved from each individual shard.
Integer	size()	get the size() parameter
T	size(int size)	Sets the maximum suggestions to be returned per suggest text term.
String	text()	get the text for this suggestion
T	text(String text)	Same as in SuggestBuilder.setGlobalText(String), but in the suggestion scope.
XContentBuilder	toXContent(XContentBuilder builder, ToXContent.Params params)
void	writeTo(StreamOutput out)	Write this into the StreamOutput.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.elasticsearch.common.io.stream.NamedWriteable

getWriteableName

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

isFragment

Field Detail

field

protected final String field

text

protected String text

prefix

protected String prefix

regex

protected String regex

analyzer

protected String analyzer

size

protected Integer size

shardSize

protected Integer shardSize

TEXT_FIELD

protected static final ParseField TEXT_FIELD

PREFIX_FIELD

protected static final ParseField PREFIX_FIELD

REGEX_FIELD

protected static final ParseField REGEX_FIELD

FIELDNAME_FIELD

protected static final ParseField FIELDNAME_FIELD

ANALYZER_FIELD

protected static final ParseField ANALYZER_FIELD

SIZE_FIELD

protected static final ParseField SIZE_FIELD

SHARDSIZE_FIELD

protected static final ParseField SHARDSIZE_FIELD

Constructor Detail

SuggestionBuilder

protected SuggestionBuilder(String field)

Creates a new suggestion.

Parameters:

field - field to execute suggestions on

SuggestionBuilder

protected SuggestionBuilder(String field,
                            SuggestionBuilder<?> in)

internal copy constructor that copies over all class fields from second SuggestionBuilder except field name.

SuggestionBuilder

protected SuggestionBuilder(StreamInput in)
                     throws IOException

Read from a stream.

Throws:

IOException

Method Detail

writeTo

public final void writeTo(StreamOutput out)
                   throws IOException

Description copied from interface: Writeable

Write this into the StreamOutput.

Specified by:

writeTo in interface Writeable

Throws:

IOException

doWriteTo

protected abstract void doWriteTo(StreamOutput out)
                           throws IOException

Throws:

IOException

text

public T text(String text)

Same as in SuggestBuilder.setGlobalText(String), but in the suggestion scope.

text

public String text()

get the text for this suggestion

prefix

protected T prefix(String prefix)

prefix

public String prefix()

get the prefix for this suggestion

regex

protected T regex(String regex)

regex

public String regex()

get the regex for this suggestion

field

public String field()

get the field() parameter

analyzer

public T analyzer(String analyzer)

Sets the analyzer to analyse to suggest text with. Defaults to the search analyzer of the suggest field.

analyzer

public String analyzer()

get the analyzer() parameter

size

public T size(int size)

Sets the maximum suggestions to be returned per suggest text term.

size

public Integer size()

get the size() parameter

shardSize

public T shardSize(Integer shardSize)

Sets the maximum number of suggested term to be retrieved from each individual shard. During the reduce phase the only the top N suggestions are returned based on the size option. Defaults to the size option.

Setting this to a value higher than the `size` can be useful in order to get a more accurate document frequency for suggested terms. Due to the fact that terms are partitioned amongst shards, the shard level document frequencies of suggestions may not be precise. Increasing this will make these document frequencies more precise.

shardSize

public Integer shardSize()

get the shardSize() parameter

toXContent

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

Specified by:

toXContent in interface ToXContent

Throws:

IOException

innerToXContent

protected abstract XContentBuilder innerToXContent(XContentBuilder builder,
                                                   ToXContent.Params params)
                                            throws IOException

Throws:

IOException

build

protected abstract SuggestionSearchContext.SuggestionContext build(QueryShardContext context)
                                                            throws IOException

Throws:

IOException

populateCommonFields

protected void populateCommonFields(MapperService mapperService,
                                    SuggestionSearchContext.SuggestionContext suggestionContext)

Transfers the text, prefix, regex, analyzer, field, size and shard size settings from the original SuggestionBuilder to the target SuggestionSearchContext.SuggestionContext

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

doEquals

protected abstract boolean doEquals(T other)

Indicates whether some other SuggestionBuilder of the same type is "equal to" this one.

hashCode

public final int hashCode()

Overrides:

hashCode in class Object

doHashCode

protected abstract int doHashCode()

HashCode for the subclass of SuggestionBuilder to implement.