Class: Sybase::Client

Inherits:
Object
  • Object
show all
Defined in:
lib/sybase/client.rb

Defined Under Namespace

Classes: Messages, ResultBuilder

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(db, opts = {}) ⇒ Client

Create a new client for the given database name



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# File 'lib/sybase/client.rb', line 10

def initialize(db, opts = {})
  @context = Context.new

  @messages = Messages.new # TODO: listener?
  @context.callbacks.library { |msg| @messages.on_message :library, msg }
  @context.callbacks.client  { |msg| @messages.on_message :client,  msg }
  @context.callbacks.server  { |msg| @messages.on_message :server,  msg }


  @connection = Connection.new(@context,
    :username => opts.fetch(:username) { raise ArgumentError, "no :username given" },
    :password => opts.fetch(:password) { raise ArgumentError, "no :password given" },
    :appname  => opts.fetch(:appname)  { "#{self.class} #{RUBY_DESCRIPTION}"       },
    :hostname => opts.fetch(:hostname) { Socket.gethostname }
  )

  @connection.connect db.to_s

  if block_given?
    begin
      yield self
    ensure
      close
    end
  end
end

Instance Attribute Details

#connection ⇒ Object (readonly)

Returns the value of attribute connection.



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# File 'lib/sybase/client.rb', line 4

def connection
  @connection
end

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/sybase/client.rb', line 4

def context
  @context
end

#messages ⇒ Object (readonly)

Returns the value of attribute messages.



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# File 'lib/sybase/client.rb', line 4

def messages
  @messages
end

Instance Method Details

#close ⇒ Object 



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# File 'lib/sybase/client.rb', line 42

def close
  @connection.close if @connection
  @context.exit
end

#execute(sql) ⇒ Object 



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# File 'lib/sybase/client.rb', line 37

def execute(sql)
  $stderr.puts "executing: #{sql.inspect}" if $DEBUG
  build_result { |res| res.affected, res.data = Command.new(@connection, sql).execute }
end