Class: Hypostasis::Namespace

Inherits:
Object
  • Object
show all
Defined in:
lib/hypostasis/namespace.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, data_model = :key_value) ⇒ Namespace

Returns a new instance of Namespace.



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# File 'lib/hypostasis/namespace.rb', line 4

def initialize(name, data_model = :key_value)
  @name = name.to_s
  @data_model = data_model.to_sym
  load_data_model
end

Instance Attribute Details

#data_model ⇒ Object (readonly)

Returns the value of attribute data_model.



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# File 'lib/hypostasis/namespace.rb', line 2

def data_model
  @data_model
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/hypostasis/namespace.rb', line 2

def name
  @name
end

Class Method Details

.create(name, options = {}) ⇒ Object

Raises:



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# File 'lib/hypostasis/namespace.rb', line 26

def self.create(name, options = {})
  raise Hypostasis::Errors::NamespaceAlreadyCreated unless database[name].nil?
  merged_options = { data_model: :key_value }.merge(options)

  database.transact do |tr|
    tr.set(name.to_s, 'true')
    tr.set(name.to_s + '\\' + Hypostasis::Tuple.new('config','data_model').to_s, merged_options[:data_model].to_s)
  end

  Hypostasis::Namespace.new(name, merged_options[:data_model])
end

.open(name) ⇒ Object

Raises:



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# File 'lib/hypostasis/namespace.rb', line 38

def self.open(name)
  raise Hypostasis::Errors::NonExistentNamespace if database[name].nil?
  data_model = database.get(name + '\\' + Hypostasis::Tuple.new('config','data_model').to_s)
  raise Hypostasis::Errors::CanNotReadNamespaceConfig if data_model.nil?
  Hypostasis::Namespace.new(name, data_model)
end

Instance Method Details

#destroy ⇒ Object 



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# File 'lib/hypostasis/namespace.rb', line 17

def destroy
  database.clear_range_start_with(@name)
  true
end

#open ⇒ Object

Raises:



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# File 'lib/hypostasis/namespace.rb', line 10

def open
  raise Hypostasis::Errors::NonExistentNamespace if database[name].nil?
  data_model = database.get(name + '\\' + Hypostasis::Tuple.new('config','data_model').to_s)
  raise Hypostasis::Errors::NamespaceDataModelMismatch if data_model != @data_model.to_s
  self
end

#to_s ⇒ Object 



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# File 'lib/hypostasis/namespace.rb', line 22

def to_s
  @name
end