Class: DataObjects::Connection

Inherits:
Object
  • Object
show all
Defined in:
lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uri) ⇒ Connection

Returns a new instance of Connection.

Raises:

  • (NotImplementedError) 


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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 79

def initialize(uri)
  raise NotImplementedError.new
end

Class Method Details

.inherited(target) ⇒ Object 



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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 43

def self.inherited(target)
  target.class_eval do

    def self.new(*args)
      instance = allocate
      instance.send(:initialize, *args)
      instance
    end

    include Extlib::Pooling
    alias close release
  end

  if driver_module_name = target.name.split('::')[-2]
    driver_module = DataObjects::const_get(driver_module_name)
    driver_module.class_eval <<-EOS, __FILE__, __LINE__
      def self.logger
        @logger
      end

      def self.logger=(logger)
        @logger = logger
      end
    EOS

    driver_module.logger = DataObjects::Logger.new(nil, :off)
  end
end

.new(uri_s) ⇒ Object 



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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 11

def self.new(uri_s)
  uri = DataObjects::URI::parse(uri_s)

  case uri.scheme.to_sym
  when :java
    warn 'JNDI URLs (connection strings) are only for use with JRuby' unless RUBY_PLATFORM =~ /java/
    # TODO: handle jndi connection strings
  when :jdbc
    warn 'JDBC URLs (connection strings) are only for use with JRuby' unless RUBY_PLATFORM =~ /java/

    driver_name = if uri.path.split(':').first == 'sqlite'
      'sqlite3'
    elsif uri.path.split(':').first == 'postgresql'
      'postgres'
    else
      uri.path.split(':').first
    end

    conn_uri = uri_s # NOTE: for now, do not reformat this JDBC connection
                     # string -- or, in other words, do not let
                     # DataObjects::URI#to_s be called -- as it is not
                     # correctly handling JDBC URLs, and in doing so, causing
                     # java.sql.DriverManager.getConnection to throw a
                     # 'No suitable driver found for...' exception.
  else
    driver_name = uri.scheme
    conn_uri = uri
  end

  DataObjects.const_get(driver_name.capitalize)::Connection.new(conn_uri)
end

Instance Method Details

#create_command(text) ⇒ Object 



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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 87

def create_command(text)
  concrete_command.new(self, text)
end

#dispose ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 83

def dispose
  raise NotImplementedError.new
end

#to_s ⇒ Object

Standard API Definition



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# File 'lib/gems/data_objects-0.9.10.1/lib/data_objects/connection.rb', line 75

def to_s
  @uri.to_s
end