Xdata-class: Xdata - A class representing a data source

Description Details


Most methods of the class are abstract, however the show, print, queries methods will usually not need to be redefined.


The query method is defined for character resource arguments. It is tried to transform the argument to an object; if that succeeds, query is called again. Derived methods that are also interpreting resource as character should first call this method via callNextMethod.

datamart documentation built on May 2, 2019, 9:40 a.m.