Module: Hoodie::IdentityMap

Defined in:
lib/hoodie/identity_map.rb

Overview

Author: Stefano Harding <[email protected]>

Copyright © 2014 Stefano Harding

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.clear ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 37

def self.clear
  repository.clear
end

.enabled ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 25

def self.enabled
  Thread.current[:identity_map_enabled]
end

.enabled=(flag) ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 21

def self.enabled=(flag)
  Thread.current[:identity_map_enabled] = flag
end

.enabled? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hoodie/identity_map.rb', line 29

def self.enabled?
  enabled == true
end

.include?(object) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/hoodie/identity_map.rb', line 41

def self.include?(object)
  repository.keys.include?(object.id)
end

.repository ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 33

def self.repository
  Thread.current[:identity_map] ||= {}
end

.use ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 45

def self.use
  old, self.enabled = enabled, true
  yield if block_given?
ensure
  self.enabled = old
  clear
end

.without ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 53

def self.without
  old, self.enabled = enabled, false
  yield if block_given?
ensure
  self.enabled = old
end

Instance Method Details

#add_to_identity_map ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 87

def add_to_identity_map
  IdentityMap.repository[id] = self if IdentityMap.enabled?
end

#delete ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 83

def delete
  super.tap { remove_from_identity_map }
end

#remove_from_identity_map ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 91

def remove_from_identity_map
  IdentityMap.repository.delete(id) if IdentityMap.enabled?
end

#save(options = {}) ⇒ Object 



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# File 'lib/hoodie/identity_map.rb', line 79

def save(options={})
  super.tap { |result| add_to_identity_map if result }
end