Class: Elasticsearch::Model::Adapter::Adapter

Inherits:
Object
  • Object
show all
Defined in:
lib/elasticsearch/model/adapter.rb

Overview

Contains an adapter for specific OxM or architecture.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass) ⇒ Adapter

Returns a new instance of Adapter.



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# File 'lib/elasticsearch/model/adapter.rb', line 69

def initialize(klass)
  @klass = klass
end

Instance Attribute Details

#klass ⇒ Object (readonly)

Returns the value of attribute klass.



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# File 'lib/elasticsearch/model/adapter.rb', line 67

def klass
  @klass
end

Class Method Details

.adapters ⇒ Hash

Return the collection of registered adapters

Examples:

Return the currently registered adapters


Elasticsearch::Model::Adapter.adapters
# => {
#  Elasticsearch::Model::Adapter::ActiveRecord => #<Proc:0x007...(lambda)>,
#  Elasticsearch::Model::Adapter::Mongoid => #<Proc:0x007... (lambda)>,
# }

Returns:

  • (Hash) —

    The collection of adapters



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# File 'lib/elasticsearch/model/adapter.rb', line 118

def self.adapters
  @adapters ||= {}
end

.register(name, condition) ⇒ Object

Registers an adapter for specific condition

Examples:

Register an adapter for DataMapper


module DataMapperAdapter

  # Implement the interface for fetching records
  #
  module Records
    def records
      klass.all(id: @ids)
    end

    # ...
  end
end

# Register the adapter
#
Elasticsearch::Model::Adapter.register(
  DataMapperAdapter,
  lambda { |klass|
    defined?(::DataMapper::Resource) and klass.ancestors.include?(::DataMapper::Resource)
  }
)

Parameters:

  • name (Module) —

    The module containing the implemented interface

  • condition (Proc) —

    An object with a ‘call` method which is evaluated in #adapter



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# File 'lib/elasticsearch/model/adapter.rb', line 102

def self.register(name, condition)
  self.adapters[name] = condition
end

Instance Method Details

#adapter ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns the adapter module



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# File 'lib/elasticsearch/model/adapter.rb', line 150

def adapter
  @adapter ||= begin
    self.class.adapters.find( lambda {[]} ) { |name, condition| condition.call(klass) }.first \
    || Elasticsearch::Model::Adapter::Default
  end
end

#callbacks_mixin ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Return the module with Default::Callbacks interface implementation



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# File 'lib/elasticsearch/model/adapter.rb', line 134

def callbacks_mixin
  adapter.const_get(:Callbacks)
end

#importing_mixin ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Return the module with Default::Importing interface implementation



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# File 'lib/elasticsearch/model/adapter.rb', line 142

def importing_mixin
  adapter.const_get(:Importing)
end

#records_mixin ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Return the module with Default::Records interface implementation



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# File 'lib/elasticsearch/model/adapter.rb', line 126

def records_mixin
  adapter.const_get(:Records)
end