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Java Persistence Example

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Getting Exception
Getting this exception when trying to run the application second time without re-deployment: javax.ejb.EJBException: javax.persistence.PersistenceException: org.hibernate.PersistentObjectException: detached entity passed to persist: entity.libr 

error in jpa example
when i deploying this application on the server.i got an error in the jboss that ObjectName: persistence.units:unitName=EntityBean State: NOTYETINSTALLED Depends On Me: jboss.j2ee:ear=book.ear,jar=book.jar,name=BookCatalogBean,service= 

thanks. It helps me a lot to understand JPA. It will be better if you can put more about how to update and delete. 

DAO Fusion
Hi, we have released an OpenSource project that goes far beyond a generic CRUD-like DAO. You can find it here: or DAO Fusion is a lightweight yet compreh 

Very good example....thank you very much...keep it up roseindia.. 

very well tutorial! 

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use the Create an Enterprise Bean wizard to create a CMP entity bean. To create an enterprise bean, you must first have an EJB..., Parent is a CMP entity bean that contains an attribute id of type int 

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