Indicates that an annotated class is a "Repository", originally defined by
Domain-Driven Design (Evans, 2003) as "a mechanism for encapsulating storage,
retrieval, and search behavior which emulates a collection of objects".
Teams implementing traditional Java EE patterns such as "Data Access Object"
may also apply this stereotype to DAO classes, though care should be taken to
understand the distinction between Data Access Object and DDD-style repositories
before doing so. This annotation is a general-purpose stereotype and individual teams
may narrow their semantics and use as appropriate.
A class thus annotated is eligible for Spring
when used in conjunction with a
PersistenceExceptionTranslationPostProcessor. The annotated class is also clarified as
to its role in the overall application architecture for the purpose of tooling,
As of Spring 2.5, this annotation also serves as a specialization of
@Component, allowing for implementation classes to be autodetected
through classpath scanning.