Class: DbCharmer::Sharding::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/db_charmer/sharding/connection.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ Connection

Returns a new instance of Connection.



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# File 'lib/db_charmer/sharding/connection.rb', line 6

def initialize(config)
  @config = config
  @sharder = self.instantiate_sharder
end

Instance Attribute Details

#config ⇒ Object

Returns the value of attribute config.



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# File 'lib/db_charmer/sharding/connection.rb', line 4

def config
  @config
end

#sharder ⇒ Object

Returns the value of attribute sharder.



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# File 'lib/db_charmer/sharding/connection.rb', line 4

def sharder
  @sharder
end

Instance Method Details

#default_connection ⇒ Object 



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# File 'lib/db_charmer/sharding/connection.rb', line 30

def default_connection
  @default_connection ||= DbCharmer::Sharding::StubConnection.new(self)
end

#instantiate_sharder ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/db_charmer/sharding/connection.rb', line 11

def instantiate_sharder
  raise ArgumentError, "No :method passed!" unless config[:method]
  sharder_class_name = "DbCharmer::Sharding::Method::#{config[:method].to_s.classify}"
  sharder_class = sharder_class_name.constantize
  sharder_class.new(config)
end

#reload_sharder ⇒ Object 



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# File 'lib/db_charmer/sharding/connection.rb', line 18

def reload_sharder
  @sharder = instantiate_sharder
end

#shard_connections ⇒ Object 



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# File 'lib/db_charmer/sharding/connection.rb', line 22

def shard_connections
  sharder.respond_to?(:shard_connections) ? sharder.shard_connections : nil
end

#support_default_shard? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/db_charmer/sharding/connection.rb', line 26

def support_default_shard?
  sharder.respond_to?(:support_default_shard?) && sharder.support_default_shard?
end