Define the XML stucture for storing the contents of the Entry Exit implementation. jmri.jmrit.signalling.configurexml.EntryExitPairsXml Define the XML stucture for storing the contents of one SignalMast Logic implementation. Generally dealt with by the manager implemenation jmri.managers.configurexml.DefaultSignalMastLogicManagerXml Define the XML stucture for storing the contents of one SignalMast Logic implementation. Generally dealt with by the manager implemenation jmri.managers.configurexml.DefaultSignalMastLogicManagerXml Define the XML stucture for storing the contents of one SignalMast Logic implementation. Generally dealt with by the manager implemenation jmri.managers.configurexml.DefaultSignalMastLogicManagerXml