The TransformationSet object defines the transformations to be performed on the columns of a component rowset in a hierarchical rowset by the Parallel Data Pump Task object.
The TransformationSet object includes a Transformations collection and contains all the information necessary to copy and transform a component rowset, such as data driven queries and their parameter collections, row and error counts, and exception file information.
The ordinal position of the TransformationSet object in the TransformationSets collection determines the component rowset to which the object is mapped. For more information about the mapping process, see TransformationSets Collection.