Merge pull request #11599 from DANS-KNAW-jp/optimize-role-assignment

optimize check for existing role assignment

Author: ofahimIQSS

src/main/java/edu/harvard/iq/dataverse/DataverseRoleServiceBean.java

@@ -245,10 +245,10 @@ public Set<RoleAssignment> rolesAssignments(DvObject dv) {
      */
     //public List<RoleAssignment> directRoleAssignments(@NotNull RoleAssignee roas, @NotNull DvObject dvo) {
     public List<RoleAssignment> directRoleAssignments(RoleAssignee roas, DvObject dvo) {
-        List<RoleAssignment> unfiltered = em.createNamedQuery("RoleAssignment.listByAssigneeIdentifier", RoleAssignment.class).
-                            setParameter("assigneeIdentifier", roas.getIdentifier())
-                            .getResultList();
-        return unfiltered.stream().filter(roleAssignment -> Objects.equals(roleAssignment.getDefinitionPoint().getId(), dvo.getId())).collect(Collectors.toList());
+        return em.createNamedQuery("RoleAssignment.listByAssigneeIdentifier_DefinitionPointId", RoleAssignment.class)
+            .setParameter("assigneeIdentifier", roas.getIdentifier())
+            .setParameter("definitionPointId", dvo.getId())
+            .getResultList();
     }
 
     /**