Class cast exception using hibernate

Question

I just want to retrieve list of data but by using below code why i get class cast exception...

public List<TbDiscussionForumAnswere> findTbDiscussionForumAnswerebyforumQuestionId(Integer forumQuestionId) {
session = sessionFactory.getCurrentSession();
TbDiscussionForumAnswere TbDiscussionForumAnswere = (TbDiscussionForumAnswere)session.createCriteria(TbDiscussionForumAnswere.class)                .add(Restrictions.eq("forumQuestionId.forumQuestionId", forumQuestionId));
return (List<TbDiscussionForumAnswere>) TbDiscussionForumAnswere.getTbDiscussionForumAnswereCollection();
}

above method gives me below exception

java.lang.ClassCastException: org.hibernate.internal.CriteriaImpl cannot be cast to com.medikm.entity.TbDiscussionForumAnswere

Thank u

did you check our answers? please accept an answer. thnx!

Apostolos
– Apostolos

2016-07-13 11:28:53 +00:00
Commented Jul 13, 2016 at 11:28 — Apostolos
– Apostolos, Commented Jul 13, 2016 at 11:28

Apostolos · Accepted Answer · 2016-07-13 06:35:41Z

1

you are creating a Criteria object not a TbDiscussionForumAnswere object. this is a correct error message. You use this Criteria class to execute a query. you should cast it to Criteria class

answered Jul 13, 2016 at 6:35

Apostolos

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Comments

Jens · Accepted Answer · 2016-07-13 06:35:48Z

1

session.createCriteria(TbDiscussionForumAnswere.class).add(Restrictions.eq("forumQuestionId.forumQuestionId", forumQuestionId)); Returns an Critera not and object TbDiscussionForumAnswere

so you have to Change the line to:

Critera critera  = (Critera)session.createCriteria(TbDiscussionForumAnswere.class).add(Restrictions.eq("forumQuestionId.forumQuestionId", forumQuestionId));

answered Jul 13, 2016 at 6:35

Jens

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Comments

ANucool Mittal · Accepted Answer · 2016-07-13 12:04:50Z

0

below code i use and this works fine for me thank you all for your answers

List<TbDiscussionForumAnswere> tbDiscussionForumAnswereList = session.createCriteria(TbDiscussionForumAnswere.class)
.add(Restrictions.eq("forumQuestionId.forumQuestionId",forumQuestionId))
.setFetchMode("forumQuestionId", FetchMode.LAZY)
.list();

answered Jul 13, 2016 at 12:04

ANucool Mittal

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2 Comments

Apostolos Over a year ago

please accept at least one answer so as the question to be considered closed.

Apostolos Over a year ago

also consider upvoting the answers that helped you with your problem. this is the "reward" for the people that spent sometime helping you! regards

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