How to create a query in your session facade.

Question

Please help me
My code is as follows
public List<TrpSprojects> getProjectNotAssignedToUser(TrpSemployees employee) {
    List proassignements =  this.findProjectAssingmentForUser(employee);
    System.out.println("Size of project assignment list :"+proassignements.size());
    List projectIdAssigned = new ArrayList();
    String queryText  =  "Select o from Trp_Sprojects o where o.project_id not in (";
    for(Iterator proassign = proassignements.iterator();proassign.hasNext();)
        queryText = queryText+((TrpSprojectAssignment) proassign.next()).getTrpSprojects().getProjectId().toString()+",";
    System.out.println(queryText.substring(0,queryText.length()-1)+");");
   String querytoBeExecuted = queryText.substring(0,queryText.length()-1)+")";
    System.out.println("The query to be executed: "+ queryText);
     Query q = em.createNativeQuery(querytoBeExecuted, TrpSprojects.class);
     return q.getResultList();
    }In my session facade i have to create a query that will return the projects that have not been assigned to the user.
When i display the queryText it is as follows:
Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)when am executing the query i am getting exception ...
Can anyone help me please . I have not defined this query in the TrpSprojects Class.
Part of my exception its too long am only putting a part
Feb 11, 2008 12:37:07 PM oracle.j2ee.rmi.RMIMessages EXCEPTION_ORIGINATES_FROM_THE_REMOTE_SERVER
WARNING: Exception returned by remote server: {0}
javax.ejb.EJBException: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "O": invalid identifier
Error Code: 904
Call:Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)
Query:ReadAllQuery(org.trp.model.TrpSprojects); nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "O": invalid identifier
Error Code: 904
Call:Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)
Query:ReadAllQuery(org.trp.model.TrpSprojects); nested exception is: oracle.oc4j.rmi.OracleRemoteException: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "O": invalid identifier
Error Code: 904
Call:Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)
Query:ReadAllQuery(org.trp.model.TrpSprojects); nested exception is:
     Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "O": invalid identifier
Error Code: 904
oracle.oc4j.rmi.OracleRemoteException: Exception [TOPLINK-4002] (Oracle TopLink Essentials - 2006.8 (Build 060829)): oracle.toplink.essentials.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "O": invalid identifier
Error Code: 904
Call:Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)
Query:ReadAllQuery(org.trp.model.TrpSprojects)
     at com.evermind.server.ejb.EJBUtils.getUserException(EJBUtils.java:346)
     at com.evermind.server.ejb.interceptor.system.AbstractTxInterceptor.convertAndHandleMethodException(AbstractTxInterceptor.java:69)
     at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:52)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
     at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
     at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
     at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
     at SCTimeReport_RemoteProxy_4p6ko7e.getProjectIdAssignedToUser(Unknown Source)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:585)
     at com.evermind.server.rmi.RmiMethodCall.run(RmiMethodCall.java:53)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)Regards
Lutchumaya

Answer 1

Thanks for your help Frank.
But when i display my query to be executed by the entityManager it is like that
Select o from Trp_Sprojects o where o.project_id not in (2,1,4,5,12,14,15,16,17,18,20,6,7,8,9,10,11,13,22,19,3,26,21,23)
Regards
Lutchumaya