Class: Tupelo::Client::SimpleTuplespace

Inherits:
Array
  • Object
show all
Defined in:
lib/tupelo/client/tuplespace.rb

Overview

Simplest fully functional tuplespace. Not efficient for large spaces.

Instance Method Summary collapse

Instance Method Details

#delete_once(elt) ⇒ Object 



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# File 'lib/tupelo/client/tuplespace.rb', line 6

def delete_once elt
  if i=index(elt)
    delete_at i
  end
end

#find_distinct_matches_for(templates) ⇒ Object 



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# File 'lib/tupelo/client/tuplespace.rb', line 22

def find_distinct_matches_for templates
  templates.inject([]) do |tuples, template|
    tuples << find_match_for(template, distinct_from: tuples)
  end
end

#find_match_for(template, distinct_from: []) ⇒ Object 



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# File 'lib/tupelo/client/tuplespace.rb', line 28

def find_match_for template, distinct_from: []
  find do |tuple|
    template === tuple and not distinct_from.any? {|t| t.equal? tuple}
  end
end

#transaction(inserts: [], deletes: [], tick: nil) ⇒ Object 



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# File 'lib/tupelo/client/tuplespace.rb', line 12

def transaction inserts: [], deletes: [], tick: nil
  deletes.each do |tuple|
    delete_once tuple or raise "bug"
  end

  inserts.each do |tuple|
    insert tuple.freeze ## freeze recursively
  end
end