Hibernatetemplate not updating


According to the DAO pattern, all persistent operations should be performed via specific classes, technically called DAO classes.These classes are used exclusively for communicating with the data tier.In the Hibernate case, instance to delegate persistence calls to Hibernate, without direct interaction with Hibernate.Here are some benefits of using Spring in the persistence layer, instead of using direct interaction with Hibernate: in the Spring Io C container.



Regarding this, there is a JEE design pattern, called the DAO pattern.These instances are instantiated from the concrete DAO classes by the Io C container at runtime. Each DAO method must obtain a instance, start a transaction, perform the persistence operation, and commit the transaction.Therefore, the service object is unaware of the actual DAO implementation details. Additionally, each DAO method should include its own duplicated exception-handling implementation.Our discussion starts with the Data Access Object (DAO) pattern.


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