All internally stored data structures should be released. User settings should not be deleted/reset though. Basically, everything what is stored in the saveInternals should be released in this method. All temporarily created data structures necessary for the execution should be blown away at the end of the execution method. The output data tables and models are stored by the framework.

Example #1:

protected void reset() {
    m_internalDataStructure = null;

What are you looking for?