Class: ActiveFacts::CQL::Compiler::CompoundMatching

Inherits:
Object
  • Object
show all
Defined in:
lib/activefacts/cql/compiler/transform_rule.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(targ_term_list, transform_query, transform_matchings) ⇒ CompoundMatching

Returns a new instance of CompoundMatching.



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# File 'lib/activefacts/cql/compiler/transform_rule.rb', line 45

def initialize targ_term_list, transform_query, transform_matchings
  @targ_term_list = targ_term_list
  @transform_query = transform_query
  @transform_matchings = transform_matchings
end

Instance Attribute Details

#targ_term_list ⇒ Object

Returns the value of attribute targ_term_list.



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# File 'lib/activefacts/cql/compiler/transform_rule.rb', line 43

def targ_term_list
  @targ_term_list
end

#transform_matchings ⇒ Object

Returns the value of attribute transform_matchings.



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# File 'lib/activefacts/cql/compiler/transform_rule.rb', line 43

def transform_matchings
  @transform_matchings
end

#transform_query ⇒ Object

Returns the value of attribute transform_query.



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# File 'lib/activefacts/cql/compiler/transform_rule.rb', line 43

def transform_query
  @transform_query
end

Instance Method Details

#compile(context) ⇒ Object 



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# File 'lib/activefacts/cql/compiler/transform_rule.rb', line 51

def compile(context)
  compound_rule = nil
  vocabulary_identifier = context.vocabulary.identifying_role_values
  constellation = context.vocabulary.constellation

  source_ot = nil
  source_query = nil
  if @transform_query.is_a?(ActiveFacts::CQL::Compiler::Reference)
    if (source_ot = constellation.ObjectType[[vocabulary_identifier, @transform_query.term]]).nil?
      raise "Invalid source object '#{@transform_query.term}' for '#{@targ_term.term}' transformation"
    end
  elsif @transform_query.is_a?(Array)
    query = Query.new(nil, @transform_query.flatten)
    query.constellation = constellation
    query.vocabulary = context.vocabulary
    if (source_query = query.compile).nil?
      raise "Invalid source query for '#{@targ_term.term}' transformation"
    end
  end

  compound_rule = constellation.CompoundMatching(
    :new, :source_object_type => source_ot, :source_query => source_query
  )
  ActiveFacts::CQL::Compiler.build_transform_target_refs(context, @targ_term_list, compound_rule)

  @transform_matchings.each do |tr|
    trule = tr.compile(context)
    trule.compound_matching = compound_rule
  end

  compound_rule
end