How to pass parameters into NamedNativeQuery

[microcz]

Hi everybody, i have a problem with passing parameters into named native query ... i have bean asociated with query, which looks like this:

@Entity
@Table(name="computer")
@SecondaryTables({
  @SecondaryTable(name="license_assignment", pkJoinColumns=@PrimaryKeyJoinColumn(name="computer_fk_id")),
  @SecondaryTable(name="installed_medium_deploy", pkJoinColumns=@PrimaryKeyJoinColumn(name="computer_fk_id"))
})
@NamedNativeQuery(name="implicitSample", query="SELECT c.computer_pk_id, la.assign_date, imd.deploy_date, c.machine, c.customer, imd.comment FROM license_assignment AS la JOIN installed_medium_deploy AS imd ON la.computer_fk_id = imd.computer_fk_id JOIN license AS l ON la.license_fk_id = l.license_pk_id JOIN license_type AS lt ON l.type_fk_id = lt.type_pk_id JOIN computer c ON la.computer_fk_id = c.computer_pk_id WHERE l.license_pk_id NOT IN (SELECT rl.license_fk_id FROM returned_license AS rl) AND lt.name = 'rtx' AND imd.comment LIKE :c1 AND c.customer LIKE :c2 AND c.machine LIKE :c3", resultClass=UsedLicenseRtx.class)
public class UsedLicenseRtx implements java.io.Serializable {
...

and i use this query this way:

javax.persistence.Query query = getEntityManager().createNamedQuery("implicitSample");
query.setParameter("c1", usedLicenseRtx.getComment());
query.setParameter("c2", usedLicenseRtx.getCustomer());
query.setParameter("c3", usedLicenseRtx.getMachine());

the problem is, that no parameters are set and hibernate calss exactly this:

15:11:14,877 INFO  [STDOUT] Hibernate: 
    SELECT
        c.computer_pk_id,
        la.assign_date,
        imd.deploy_date,
        c.machine,
        c.customer,
        imd.comment 
    FROM
        license_assignment AS la 
    JOIN
        installed_medium_deploy AS imd 
            ON la.computer_fk_id = imd.computer_fk_id 
    JOIN
        license AS l 
            ON la.license_fk_id = l.license_pk_id 
    JOIN
        license_type AS lt 
            ON l.type_fk_id = lt.type_pk_id 
    JOIN
        computer c 
            ON la.computer_fk_id = c.computer_pk_id 
    WHERE
        l.license_pk_id NOT IN (
            SELECT
                rl.license_fk_id 
            FROM
                returned_license AS rl
        ) 
        AND lt.name = 'rtx' 
        AND imd.comment LIKE ? 
        AND c.customer LIKE ? 
        AND c.machine LIKE ? limit ?

I also tryed ?1 ?2 ?3 instead of those :c1 :c2 :c3 and than use SetParameter(1, usedLicenseRtx.getComment()) etc.. but with same effect
I have also found on some forum, that for native query only ? should be used instead of ?1 ?2 etc...so i tryed but again with same effect :(
Please don't you know why is happening this to me?