Class: Stupidedi::Schema::TableDef

Inherits:
AbstractDef show all
Defined in:
lib/stupidedi/schema/table_def.rb

Instance Attribute Summary collapse

Constructors collapse

Instance Method Summary collapse

Methods inherited from AbstractDef

#component?, #composite?, #definition?, #element?, #functional_group?, #interchange?, #loop?, #repeated?, #segment?, #simple?, #transaction_set?, #usage?

Constructor Details

#initialize(id, position, header_segment_uses, loop_defs, trailer_segment_uses, parent) ⇒ TableDef 



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# File 'lib/stupidedi/schema/table_def.rb', line 25

def initialize(id, position, header_segment_uses, loop_defs, trailer_segment_uses, parent)
  @id, @position, @header_segment_uses, @loop_defs, @trailer_segment_uses, @parent =
    id, position, header_segment_uses, loop_defs, trailer_segment_uses, parent

  # Delay re-parenting until the entire definition tree has a root
  # to prevent unnecessarily copying objects
  unless parent.nil?
    @header_segment_uses  = @header_segment_uses.map{|x| x.copy(:parent => self) }
    @loop_defs            = @loop_defs.map{|x| x.copy(:parent => self) }
    @trailer_segment_uses = @trailer_segment_uses.map{|x| x.copy(:parent => self) }
  end
end

Instance Attribute Details

#header_segment_uses ⇒ Array<SegmentUse> (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 11

def header_segment_uses
  @header_segment_uses
end

#id ⇒ String (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 8

def id
  @id
end

#loop_defs ⇒ Array<LoopDef> (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 17

def loop_defs
  @loop_defs
end

#parent ⇒ TransactionSetDef (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 20

def parent
  @parent
end

#position ⇒ Integer (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 23

def position
  @position
end

#trailer_segment_uses ⇒ Array<SegmentUse> (readonly) 



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# File 'lib/stupidedi/schema/table_def.rb', line 14

def trailer_segment_uses
  @trailer_segment_uses
end

Class Method Details

.detail(id, *children) ⇒ TableDef 



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# File 'lib/stupidedi/schema/table_def.rb', line 157

def detail(id, *children)
  unless id.is_a?(String)
    raise Exceptions::InvalidSchemaError,
      "first argument to TableDef.detail must be a String but got #{id.inspect}"
  end

  header, children   = children.split_when{|x| x.is_a?(LoopDef) }
  loop_defs, trailer = children.split_when{|x| x.is_a?(SegmentUse) }
  new(id, 2, header, loop_defs, trailer, nil)
end

.header(id, *children) ⇒ TableDef 



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# File 'lib/stupidedi/schema/table_def.rb', line 145

def header(id, *children)
  unless id.is_a?(String)
    raise Exceptions::InvalidSchemaError,
      "first argument to TableDef.header must be a String but got #{id.inspect}"
  end

  header, children   = children.split_when{|x| x.is_a?(LoopDef) }
  loop_defs, trailer = children.split_when{|x| x.is_a?(SegmentUse) }
  new(id, 1, header, loop_defs, trailer, nil)
end

.summary(id, *children) ⇒ TableDef 



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# File 'lib/stupidedi/schema/table_def.rb', line 169

def summary(id, *children)
  unless id.is_a?(String)
    raise Exceptions::InvalidSchemaError,
      "first argument to TableDef.summary must be a String but got #{id.inspect}"
  end

  header, children   = children.split_when{|x| x.is_a?(LoopDef) }
  loop_defs, trailer = children.split_when{|x| x.is_a?(SegmentUse) }
  new(id, 3, header, loop_defs, trailer, nil)
end

Instance Method Details

#children ⇒ Array<SegmentUse, LoopDef> 



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# File 'lib/stupidedi/schema/table_def.rb', line 92

def children
  @header_segment_uses + @loop_defs + @trailer_segment_uses
end

#code_lists ⇒ AbstractSet<CodeList> 



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# File 'lib/stupidedi/schema/table_def.rb', line 106

def code_lists
  children.map(&:code_lists).inject(&:|)
end

#copy(changes = {}) ⇒ TableDef 



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# File 'lib/stupidedi/schema/table_def.rb', line 39

def copy(changes = {})
  TableDef.new \
    changes.fetch(:id, @id),
    changes.fetch(:position, @position),
    changes.fetch(:header_segment_uses, @header_segment_uses),
    changes.fetch(:loop_defs, @loop_defs),
    changes.fetch(:trailer_segment_uses, @trailer_segment_uses),
    changes.fetch(:parent, @parent)
end

#descriptor ⇒ String 



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# File 'lib/stupidedi/schema/table_def.rb', line 50

def descriptor
  "table #{id}"
end

#empty ⇒ Values::TableVal 



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# File 'lib/stupidedi/schema/table_def.rb', line 97

def empty
  Values::TableVal.new(self, [])
end

#entry_segment_uses ⇒ Array<SegmentUse> 



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# File 'lib/stupidedi/schema/table_def.rb', line 73

def entry_segment_uses
  uses = @header_segment_uses \
       + @loop_defs.map{|l| l.entry_segment_use } \
       + @trailer_segment_uses

  # Up to and including the first required segment
  suffix = uses.drop_while(&:optional?)

  if suffix.present?
    # Some segment(s) is required, so table can't start without it
    position = suffix.map(&:position).min
    uses.take_while{|u| u.position <= position }
  else
    # Nothing is required, table can begin at any of these
    uses
  end
end

#pretty_print(q) ⇒ void 



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# File 'lib/stupidedi/schema/table_def.rb', line 111

def pretty_print(q)
  q.text("TableDef[#{@id}]")
  q.group(2, "(", ")") do
    q.breakable ""
    @header_segment_uses.each do |e|
      unless q.current_group.first?
        q.text ","
        q.breakable
      end
      q.pp e
    end
    @loop_defs.each do |e|
      unless q.current_group.first?
        q.text ","
        q.breakable
      end
      q.pp e
    end
    @trailer_segment_uses.each do |e|
      unless q.current_group.first?
        q.text ","
        q.breakable
      end
      q.pp e
    end
  end
end

#repeat_count ⇒ Object 



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# File 'lib/stupidedi/schema/table_def.rb', line 60

def repeat_count
  if repeatable?
    RepeatCount.unbounded
  else
    RepeatCount.bounded(1)
  end
end

#repeatable? ⇒ Boolean 



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# File 'lib/stupidedi/schema/table_def.rb', line 54

def repeatable?
  @header_segment_uses.empty? and
    @loop_defs.present?       and
    @loop_defs.head.repeatable?
end

#required? ⇒ Boolean 



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# File 'lib/stupidedi/schema/table_def.rb', line 68

def required?
  entry_segment_uses.any?(&:required?)
end

#table? ⇒ Boolean 



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# File 'lib/stupidedi/schema/table_def.rb', line 101

def table?
  true
end