Description Usage Arguments Format Details Author(s) See Also
Reader
Class responsible for performing read functionality through
the document and document collection composite hierarchy. This class has
a single method that, upon instantiation, initiates a VReader object,
passes this visitor object to the document's accept method. The document
accepts the VReader visitor and the VReader processes the request or
dispatches another read request on a composite object.
1 |
object |
This is an object of the DocumentCollection, Document or File class |
An object of class R6ClassGenerator
of length 24.
Reader Class Overview: The Reader class is a participant in the VReader visitor pattern, a design pattern described in the book "Design Patterns: Elements of Reusable Object-Oriented Software" by Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides (hence Gang of Four). This visitor pattern allows new operations to be defined without changing the classes upon which the visitor method operates.
Reader Methods: The Reader class has a single method as follows:
readData(object)
Method responsible for performing read functionality within the Document composite hierarchy.
John James, jjames@DataScienceSalon.org
Other Read/Write Classes: VReader
,
VWriter
, Writer
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