[SOLVED] Setting a parameter as a list for an IN expression

Setting a parameter as a list for an IN expression

Whenever I try to set a list as a parameter for use in an IN expression I get an Illegal argument exception. Various posts on the internet seem to indicate that this is possible, but it's certainly not working for me. I'm using Glassfish V2.1 with Toplink.

Has anyone else been able to get this to work, if so how?

here's some example code:

List<String> logins = em.createQuery("SELECT a.accountManager.loginName " +
    "FROM Account a " +
    "WHERE a.id IN (:ids)")
    .setParameter("ids",Arrays.asList(new Long(1000100), new Long(1000110)))
    .getResultList();

and the relevant part of the stack trace:

java.lang.IllegalArgumentException: You have attempted to set a value of type class java.util.Arrays$ArrayList for parameter accountIds with expected type of class java.lang.Long from query string SELECT a.accountManager.loginName FROM Account a WHERE a.id IN (:accountIds).
at oracle.toplink.essentials.internal.ejb.cmp3.base.EJBQueryImpl.setParameterInternal(EJBQueryImpl.java:663)
at oracle.toplink.essentials.internal.ejb.cmp3.EJBQueryImpl.setParameter(EJBQueryImpl.java:202)
at com.corenap.newtDAO.ContactDaoBean.getNotificationAddresses(ContactDaoBean.java:437)
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:597)
at com.sun.enterprise.security.application.EJBSecurityManager.runMethod(EJBSecurityManager.java:1011)
at com.sun.enterprise.security.SecurityUtil.invoke(SecurityUtil.java:175)
at com.sun.ejb.containers.BaseContainer.invokeTargetBeanMethod(BaseContainer.java:2920)
at com.sun.ejb.containers.BaseContainer.intercept(BaseContainer.java:4011)
at com.sun.ejb.containers.EJBObjectInvocationHandler.invoke(EJBObjectInvocationHandler.java:203)
... 67 more

Solution

Your JPQL is invalid, remove the brackets

List<String> logins = em.createQuery("SELECT a.accountManager.loginName " +
    "FROM Account a " +
    "WHERE a.id IN :ids")
    .setParameter("ids",Arrays.asList(new Long(1000100), new Long(1000110)))
    .getResultList();