class DRb::DRbUnknown
Class wrapping a marshalled object whose type is unknown locally.
If an object is returned by a method invoked over drb, but the class of the object is unknown in the client namespace, or the object is a constant unknown in the client namespace, then the still-marshalled object is returned wrapped in a DRbUnknown
instance.
If this object is passed as an argument to a method invoked over drb, then the wrapped object is passed instead.
The class or constant name of the object can be read from the name
attribute. The marshalled object is held in the buf
attribute.
Attributes
Buffer contained the marshalled, unknown object.
The name of the unknown thing.
Class name for unknown objects; variable name for unknown constants.
Public Class Methods
Create a new DRbUnknown
object.
buf
is a string containing a marshalled object that could not be unmarshalled. err
is the error message that was raised when the unmarshalling failed. It is used to determine the name of the unmarshalled object.
# File drb/drb.rb, line 465 def initialize(err, buf) case err.to_s when /uninitialized constant (\S+)/ @name = $1 when /undefined class\/module (\S+)/ @name = $1 else @name = nil end @buf = buf end
Public Instance Methods
Create a DRbUnknownError
exception containing this object.
# File drb/drb.rb, line 508 def exception DRbUnknownError.new(self) end
Attempt to load the wrapped marshalled object again.
If the class of the object is now known locally, the object will be unmarshalled and returned. Otherwise, a new but identical DRbUnknown
object will be returned.
# File drb/drb.rb, line 503 def reload self.class._load(@buf) end