Saveorupdate not updating
Developers need to write SQL queries, process the result set and convert the data in the form of objects (Data model).
I think most programmers would typically write a function to convert the object to query and result set to object.
5) For complex data, mapping from Object-to-tables and vise versa reduces performance and increases time of conversion.
6) Hibernate does not allow some type of queries which are supported by JDBC.
For example It does not allow to insert multiple objects (persistent data) to same table using single query. Hibernate uses ehcache and provides caching support.
Row Mapper; /** * An implementation of the Contact DAO interface. Contact DAOImpl; import org.springframework.context.annotation. Bean; import org.springframework.context.annotation. Component Scan; import org.springframework.context.annotation. Mvc Configuration: Bean instantiation via factory method failed; nested exception is org.springframework.beans.Stock Transaction stock Tran = new Stock Transaction(); //stock Price Open(new Float("1.2")); //stock Price Close(new Float("1.1")); //stock Price Change(new Float("10.0")); stock Volume(2000000L); stock Date(new Date()); stock Stock(stock); session.save(stock Tran); Hibernate will generate only the necessary columns (DATE, STOCK_ID, VOLUME) for the insertion.In certain situations, such as a very large table with hundreds of columns (legacy design), or a table contains extremely large data volume, insert something not necessary definitely will drop down your system performance.Customer and the ORM will take care of loading the data for you without any effort on your part. Data loads are completely configurable allowing you to load the data appropriate for each scenario. Support for multiple users updating the same data simultaneously. 3) Support for Hibernate on Internet is not sufficient. For example in one scenario you might want to load a list of POs without any of it’s child / related objects, while in other scenarious you can specify to load a PO, with all it’s child Line Items, etc. 4) Anybody wanting to maintain application using Hibernate will need to know Hibernate.