Quote data manager
A quote data manager Gosu object
controls conversion to XML, storage, retrieval, and conversion from XML
of quote data. The quote data manager implements the gw.quoting.QuoteDataManager interface.
This interface provides methods to store a policy quote in archive XML
format in an external database and to reconstitute a policy period from
the XML. PolicyCenter provides a demonstration implementation of QuoteDataManager, gw.quoting.impl.DefaultQuoteDataManager,
which emulates an external database as hash maps in memory. Use this
class as a basis for your own implementation of the QuoteDataManager interface.
