Class: ActiveRecord::ConnectionAdapters::NullPool

Inherits:
Object
  • Object
show all
Includes:
AbstractPool
Defined in:
activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb

Overview

:nodoc:

Defined Under Namespace

Classes: NullConfig

Constant Summary collapse

NULL_CONFIG =

:nodoc:

NullConfig.new

Instance Method Summary collapse

Constructor Details

#initialize ⇒ NullPool

Returns a new instance of NullPool.



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 24

def initialize
  super()
  @mutex = Mutex.new
  @server_version = nil
end

Instance Method Details

#async_executor ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 42

def async_executor; end

#checkin(_) ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 40

def checkin(_); end

#connection_descriptor ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 39

def connection_descriptor; end

#db_config ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 44

def db_config
  NULL_CONFIG
end

#dirties_query_cache ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 48

def dirties_query_cache
  true
end

#remove(_) ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 41

def remove(_); end

#schema_cache ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 38

def schema_cache; end

#schema_reflection ⇒ Object 



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 34

def schema_reflection
  SchemaReflection.new(nil)
end

#server_version(connection) ⇒ Object

:nodoc:



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# File 'activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb', line 30

def server_version(connection) # :nodoc:
  @server_version || @mutex.synchronize { @server_version ||= connection.get_database_version }
end