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# Licensed to Elasticsearch B.V. under one or more contributor
# license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright
# ownership. Elasticsearch B.V. licenses this file to you under
# the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
module Elasticsearch
module DSL
module Search
module Aggregations
#
# A multi-bucket aggregation that creates composite buckets from different sources.
#
# @example
#
# search do
# aggregation :things do
# composite do
# size 2000
# sources [
# { thing1: { terms: { field: 'thing1.field1' } } },
# { thing2: { terms: { field: 'thing2.field2' } } }
# ]
# after after_key
# end
# end
# end
#
# @see https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-composite-aggregation.html
#
class Composite
include BaseAggregationComponent
option_method :size
option_method :sources
option_method :after
def to_hash(_options={})
super
# remove :after if no value is given
@hash[name.to_sym].delete(:after) if @hash[name.to_sym].is_a?(Hash) && @hash[name.to_sym][:after].nil?
@hash
end
end
end
end
end
end
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