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Contents
# Copyright 2011-2012 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You
# may not use this file except in compliance with the License. A copy of
# the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "license" file accompanying this file. This file 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 AWS
class DynamoDB
class PrimaryKeyElement
attr_reader :name
attr_reader :type
ATTRIBUTE_TYPES = {
"S" => :string,
"N" => :number,
"B" => :binary,
}
def initialize(hash)
@name = hash[:name] || hash["AttributeName"]
@type = hash[:type] || ATTRIBUTE_TYPES[hash["AttributeType"]]
end
def self.from_description(description)
(name, type, *extra) = description.to_a.flatten
raise(ArgumentError,
"key element may contain only one name/type pair") unless
extra.empty?
raise ArgumentError, "unsupported type #{type.inspect}" unless
ATTRIBUTE_TYPES.values.include?(type.to_sym)
new(:name => name.to_s, :type => type)
end
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems