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# Copyright (C) 2009-2014 MongoDB, Inc.
#
# Licensed 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 Mongo
module Operation
module Commands
# A MongoDB parallel scan operation.
#
# @example Create the parallel scan operation.
# ParallelScan.new({
# :db_name => 'test_db',
# :coll_name = > 'test_collection',
# :cursor_count => 5
# })
#
# Initialization:
# param [ Hash ] spec The specifications for the operation.
#
# option spec :db_name [ String ] The name of the database on which
# the operation should be executed.
# option spec :coll_name [ String ] The collection to scan.
# option spec :cursor_count [ Integer ] The number of cursors to use.
# option spec :options [ Hash ] Options for the command.
#
# @since 2.0.0
class ParallelScan < Command
include CausallyConsistent
private
def selector
command = { :parallelCollectionScan => coll_name, :numCursors => cursor_count }
command[:readConcern] = read_concern if read_concern
command[:maxTimeMS] = max_time_ms if max_time_ms
command
end
end
end
end
end
require 'mongo/operation/commands/parallel_scan/result'
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