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Includes components that encapsulate access to Cosmo data sources.

Package Specification


The interfaces in this package specify APIs for accessing and
manipulating Cosmo model data. The interfaces are independent of
underlying storage mechanisms (which are provided as subpackages).



Data access objects (DAOs) are typically not used by the application
or protocol layer directly but rather by the service layer, which
often uses multiple DAOs and applies server-wide "business
logic" when performing a service operation.


Related Documentation


Core
    J2EE Patterns - Data Access Object