org.elasticsearch.search.aggregations.support

Class MultiValuesSourceParser<VS extends ValuesSource>

java.lang.Object

org.elasticsearch.search.aggregations.support.MultiValuesSourceParser<VS>

All Implemented Interfaces:

Aggregator.Parser

Direct Known Subclasses:

MultiValuesSourceParser.AnyValuesSourceParser, MultiValuesSourceParser.BytesValuesSourceParser, MultiValuesSourceParser.GeoPointValuesSourceParser, MultiValuesSourceParser.NumericValuesSourceParser

public abstract class MultiValuesSourceParser<VS extends ValuesSource>
extends java.lang.Object
implements Aggregator.Parser

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MultiValuesSourceParser.AnyValuesSourceParser
static class	MultiValuesSourceParser.BytesValuesSourceParser
static class	MultiValuesSourceParser.GeoPointValuesSourceParser
static class	MultiValuesSourceParser.NumericValuesSourceParser

Method Summary

Modifier and Type	Method and Description
protected abstract MultiValuesSourceAggregationBuilder<VS,?>	createFactory(java.lang.String aggregationName, ValuesSourceType valuesSourceType, ValueType targetValueType, java.util.Map<ParseField,java.lang.Object> otherOptions) Creates a ValuesSourceAggregationBuilder from the information gathered by the subclass.
MultiValuesSourceAggregationBuilder<VS,?>	parse(java.lang.String aggregationName, QueryParseContext context)
protected abstract boolean	token(java.lang.String aggregationName, java.lang.String currentFieldName, XContentParser.Token token, XContentParser parser, java.util.Map<ParseField,java.lang.Object> otherOptions) Allows subclasses of MultiValuesSourceParser to parse extra parameters and store them in a Map which will later be passed to createFactory(String, ValuesSourceType, ValueType, Map).

Methods inherited from class java.lang.Object

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

Method Detail

parse

public final MultiValuesSourceAggregationBuilder<VS,?> parse(java.lang.String aggregationName,
                                                             QueryParseContext context)
                                                      throws java.io.IOException

Specified by:

parse in interface Aggregator.Parser

Throws:

java.io.IOException

createFactory

protected abstract MultiValuesSourceAggregationBuilder<VS,?> createFactory(java.lang.String aggregationName,
                                                                           ValuesSourceType valuesSourceType,
                                                                           ValueType targetValueType,
                                                                           java.util.Map<ParseField,java.lang.Object> otherOptions)

Creates a ValuesSourceAggregationBuilder from the information gathered by the subclass. Options parsed in MultiValuesSourceParser itself will be added to the factory after it has been returned by this method.

Parameters:

aggregationName - the name of the aggregation

valuesSourceType - the type of the ValuesSource

targetValueType - the target type of the final value output by the aggregation

otherOptions - a Map containing the extra options parsed by the token(String, String, XContentParser.Token, XContentParser, Map) method

Returns:

the created factory

token

protected abstract boolean token(java.lang.String aggregationName,
                                 java.lang.String currentFieldName,
                                 XContentParser.Token token,
                                 XContentParser parser,
                                 java.util.Map<ParseField,java.lang.Object> otherOptions)
                          throws java.io.IOException

Allows subclasses of MultiValuesSourceParser to parse extra parameters and store them in a Map which will later be passed to createFactory(String, ValuesSourceType, ValueType, Map).

Parameters:

aggregationName - the name of the aggregation

currentFieldName - the name of the current field being parsed

token - the current token for the parser

parser - the parser

otherOptions - a Map of options to be populated by successive calls to this method which will then be passed to the createFactory(String, ValuesSourceType, ValueType, Map) method

Returns:

true if the current token was correctly parsed, false otherwise

Throws:

java.io.IOException - if an error occurs whilst parsing