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module HQMF1
class Expression
include HQMF1::Utilities
attr_reader :text, :value, :type
def initialize(entry)
@entry = entry
@text = @entry.xpath('./*/cda:derivationExpr').text.strip
type = attr_val('./*/cda:value/@xsi:type')
case type
when 'IVL_PQ'
@value = Range.new(@entry.xpath('./*/cda:value'))
when 'PQ'
@value = Value.new(@entry.xpath('./*/cda:value'))
when 'ANYNonNull'
@value = HQMF::AnyValue.new
when nil
@value = HQMF::AnyValue.new
else
raise "Unknown expression value type #{type}"
end
@type = match_type
end
def match_type
case @text
when /^COUNT(.*)$/
"COUNT"
when /^MIN(.*)$/
"MIN"
when /^MAX(.*)$/
"MAX"
when /^DATEDIFF(.*)$/
"DATEDIFF"
when /^TIMEDIFF(.*)$/
"TIMEDIFF"
when /^MEDIAN(.*)$/
"MEDIAN"
when /^AVG(.*)$/
"MEAN"
else
raise "unknown expression type: #{@text}"
end
end
def to_json
json = build_hash(self, [:text,:type])
json[:value] = self.value.to_json if self.value
json
end
end
end
Version data entries
45 entries across 45 versions & 2 rubygems