Class: AnyStyle::Dictionary::GDBM

Inherits:
AnyStyle::Dictionary show all
Defined in:
lib/anystyle/dictionary/gdbm.rb

Instance Attribute Summary collapse

Attributes inherited from AnyStyle::Dictionary

#db, #options

Instance Method Summary collapse

Methods inherited from AnyStyle::Dictionary

create, instance, #populate!, #tag_counts, #tags

Constructor Details

#initialize(options = {}) ⇒ GDBM

Returns a new instance of GDBM.



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# File 'lib/anystyle/dictionary/gdbm.rb', line 14

def initialize(options = {})
  super(self.class.defaults.merge(options))
end

Instance Attribute Details

#env ⇒ Object (readonly)

Returns the value of attribute env.



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# File 'lib/anystyle/dictionary/gdbm.rb', line 12

def env
  @env
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/anystyle/dictionary/gdbm.rb', line 26

def close
  db.close if open?
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/anystyle/dictionary/gdbm.rb', line 34

def empty?
  open? and db.empty?
end

#get(key) ⇒ Object 



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# File 'lib/anystyle/dictionary/gdbm.rb', line 43

def get(key)
  db[key.to_s].to_i
end

#open ⇒ Object 



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# File 'lib/anystyle/dictionary/gdbm.rb', line 18

def open
  close
  @db = ::GDBM.new(*options.values_at(:path, :mode, :flags))
  self
ensure
  populate! if empty?
end

#open? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/anystyle/dictionary/gdbm.rb', line 30

def open?
  !(db.nil? || db.closed?)
end

#put(key, value) ⇒ Object 



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# File 'lib/anystyle/dictionary/gdbm.rb', line 47

def put(key, value)
  db[key.to_s] = value.to_i.to_s
end

#truncate ⇒ Object 



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# File 'lib/anystyle/dictionary/gdbm.rb', line 38

def truncate
  close
  File.unlink(options[:path])
end