Class: ConceptQL::Operators::StartedBy

Inherits:
TemporalOperator show all
Defined in:
lib/conceptql/operators/started_by.rb

Constant Summary

Constants inherited from Operator

Operator::COLUMNS

Instance Attribute Summary

Attributes inherited from Operator

#arguments, #options, #upstreams, #values

Instance Method Summary collapse

Methods inherited from TemporalOperator

#inclusive?, #left_stream, #query, #right_stream

Methods inherited from BinaryOperatorOperator

#display_name, #graph_it, #upstreams

Methods inherited from Operator

#columns, #evaluate, #initialize, #label, #select_it, #set_values, #sql, #stream, #types

Methods included from Metadatable

#allows_many_upstreams, #allows_one_upstream, #argument, #category, #desc, #humanized_class_name, #inherited, #just_class_name, #option, #predominant_types, #preferred_name, #reset_categories, #to_metadata, #types

Constructor Details

This class inherits a constructor from ConceptQL::Operators::Operator

Instance Method Details

#where_clause ⇒ Object 



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# File 'lib/conceptql/operators/started_by.rb', line 12

def where_clause
  [ { l__start_date: :r__start_date } ] + \
  if inclusive?
    [ Proc.new { l__end_date >= r__end_date } ]
  else
    [ Proc.new { l__end_date > r__end_date } ]
  end
end