Hi,

I am using following code to update SolutionCategory,
simple update without validation is working fine.....


public void update(SolutionCategory o, Errors e) throws ServiceValidationException {

SolutionCategory solutionCategory = (SolutionCategory) o;
DynamicCriteria dynaCrit = new DynamicCriteria();
dynaCrit.add("name",solutionCategory.getName(),DynamicCriteria.EQUAL);
List list = findAll(dynaCrit);

SolutionCategory tempSC = (SolutionCategory) list.get(0);
if(list.size() > 0 && !tempSC.getID().equals(o.getID()) ){
e.reject("DUPLICATE_CATEGORY_NAME");
throw new ServiceValidationException(e);
}

dao.update(solutionCategory);
}


Before updating the record I want to validate duplicate SolutionCategory Name.
So to implement that stuff I am going to fetch all record by :- List list = findAll(dynaCrit); method.

Now after this validation code while executing dao.update(solutionCategory); line my hibernate session has two different object with the same identifier value i). Original Object of the Update function
ii). another one is found by findAll method

Because of this two object, at time of saving record following error has been generate by hibernate.

a different object with the same identifier value was already associated with the session: [com..cs.solutionreg.solutioncategory.SolutionCategory#12]; nested exception is org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.cs.solutionreg.solutioncategory.SolutionCategory#12]

Could you give me proper solution?

i). How I detach extra Object form Hibernate Session ??
ii). Should not use this kind of validation in update function ??

Hi Dhaval ,


session.merge(solutionCategory);
it would solve your problem