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POGetting a ClassCastException in hibernate
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  1. POGetting a ClassCastException in hibernate
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    copied!<p>I'm writing some code in hibernate where I'm required to update some other table (hall_calendar) before a row is inserted in my table (hall_block_calendar). I have status F, E, M from which only those dates submitted by the form having "F" are to be marked "N". My mapping file for pojo class Hall_calendar.java contains composite key for hall_code and calendar_date and hallbookingcompid in the pojo class.</p> <p>My query is working fine. However, the for loop throws an exception. I would appreciate any inputs on this. </p> <pre><code> public boolean addHallCalendarBlock(Hall_block_calendar hbc, Hall_calendar hc) { //boolean result; Session session=HibernateUtil.getSessionFactory().openSession(); Transaction tx=null; try { tx=session.beginTransaction(); Query q=session.createQuery("from Hall_calendar h where h.hallbookingcompid.calendar_date between'"+hbc.getHall_block_from_date()+"' and '"+hbc.getHall_block_to_date()+"' and hall_availability='F'"); System.out.println("query working: "+q.list()); if(!q.list().isEmpty()) { Hall_calendar upd_obj = new Hall_calendar(); for(Iterator it=q.iterate();it.hasNext();) { Object[] row = (Object[]) it.next(); System.out.println("row[0]: "+(String)row[0]); upd_obj= (Hall_calendar) session.load(Hall_calendar.class, (String)row[0]); upd_obj.setHall_availability("N"); session.save(upd_obj); } session.save(hbc); tx.commit(); } } catch(Exception e) { tx.rollback(); e.printStackTrace(); return false; } finally { session.close(); } return true; } query working: [com.cmc.sibs.vo.Hall_calendar@7e9bed, com.cmc.sibs.vo.Hall_calendar@4d2125, com.cmc.sibs.vo.Hall_calendar@1bb41d7, com.cmc.sibs.vo.Hall_calendar@df9252] java.lang.ClassCastException: com.cmc.sibs.vo.Hall_calendar at com.cmc.sibs.dao.SibsDao.addHallCalendarBlock(SibsDao.java:21861) at com.cmc.sibs.delegates.SibsDelegate.addHallCalendarBlock(SibsDelegate.java:2982) at com.cmc.sibs.servlets.AddHallBlocking.doPost(AddHallBlocking.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489) at java.lang.Thread.run(Unknown Source) boolean in servlet: false </code></pre>
 

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