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# Copyright 2011-2013 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 SimpleDB
# @api private
module ExpectConditionOption
# @api private
protected
def expect_condition_opts(opts)
expected = []
opts.each do |name, value|
case name
when :if
(expected_name, expected_value) = value.to_a.first
expected << {
:name => expected_name.to_s,
:value => expected_value
}
when :unless, :unless_exists
expected << {
:name => value.to_s,
:exists => false
}
end
end
expected.empty? ? {} : expected.first
end
end
end
end
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