The survivor calculator determines which field values from the various system records will populate the SBR for the enterprise record. You can create a custom survivor calculator class that selects the surviving field values. Your custom class must implement the survivor calculator interface. Call selectField in com.stc.eindex.survivor.SurvivorStrategyInterface to return the SBR value for each field. For more information about the classes and methods to use, see the Javadocs for Sun Master Index. The primary classes are contained in the com.stc.eindex.survivor package. Enter the fully qualified class path for the custom survivor calculator in the Best Record file.