AssignedProxy-class: Class for Assigned Proxy Objects and Related Mechanisms
In XR: A Structure for Interfaces from R

Description Details Slots References

The 'AssignedProxy' class is used by interface packages to return a reference to an assigned server object. The R user can then supply this object anywhere in later interface computations, just as one would use the name of an R object in a function call or other expression.

The virtual class 'ProxyObject' is a superclass, designed to allow other mechanisms for proxy objects (none exists at this time).

.Data: The 'AssignedProxy' class is a subclass of 'character'; the actual character string will be generated by the interface and is unique over the session, so long as the 'XR' package stays loaded.
serverClass,module: The server language class and module for the corresponding object.
size: The size (usually, length) of the server object, if that makes sense. Can be used to make decisions about handling large objects.
evaluator: The evaluator object that returned the proxy. Having this as a slot allows interface computations to operate directly on the proxy, without a user-supplied evaluator.

Chambers, John M. (2016) Extending R, Chapman & Hall/CRC. ( Chapter 13, discussing this package, is included in the package: ../doc/Chapter_XR.pdf.)

XR documentation built on May 2, 2019, 6:01 a.m.