Different mechanisms to write the mappings
NHibernate has at least three different mechanisms for mapping persistent classes to database tables. This is both good and bad. While you can choose the one that you are most comfortable with, this can also leave you confused at times. Two of the mechanisms are natively supported by NHibernate library and one is an external implementation. In this section, we would look at all the three mechanisms briefly, before proceeding to implement mapping for our employee benefits problem. Though there are three different ways of expressing entity mappings, keep in mind that the core of the mapping engine is same, no matter which way you express your mappings. For all the mapping discussions in this chapter, I ...
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