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  1. OpenJPA
  2. OPENJPA-2736

Can not set sub-query parameters



    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 2.4.2
    • Fix Version/s: None
    • Component/s: jpa
    • Labels:


      It seems that in some cases, the parameters can't be set for sub-queries. I've seen this exception:

       java.lang.IllegalArgumentException: Parameter named "device_group_access_hash" is not declared in query "SELECT SUM(1) AS total_count, MIN(e.when) AS min_time, MAX(e.when) AS max_time, e.vehicle.vin AS key_vin, e.level AS key_level, e.moduleID AS key_json_moduleID FROM E_ComponentLog e INNER JOIN e.vehicle ?  WHERE (((e.vehicle.tenancy = :tenancy AND e.type = :_type) AND e.when BETWEEN :minTime AND :maxTime) AND e.vehicle IN (SELECT  DISTINCT * FROM E_SotaDevice e INNER JOIN e.groups ?  WHERE e.groups.group IN (SELECT e.groupName FROM E_SotaDeviceGroupBlock e WHERE (e.strHash = :device_group_access_hash AND e.tenancy = e.tenancy)))) GROUP BY e.vehicle.vin, e.level, e.moduleID". Declared parameter keys are "[ParameterExpression<Timestamp>('maxTime'), ParameterExpression<String>('_type'), ParameterExpression<String>('tenancy'), ParameterExpression<Timestamp>('minTime')]".
              at org.apache.openjpa.persistence.AbstractQuery.getParameter(AbstractQuery.java:385)
              at org.apache.openjpa.persistence.AbstractQuery.setParameter(AbstractQuery.java:586)
              at org.apache.openjpa.persistence.AbstractQuery.setParameter(AbstractQuery.java:47)
              at java.util.HashMap.forEach(HashMap.java:1289)
              at com.excelfore.util.Q$COMPONENT_LOG_GROUP.getGroupList(Q.java:2384)

      The parameter can clearly be seen in the query. I don't really know how to localize it into a test case. This only happens when EntityManagerImpl.createQuery() ends up calling declareParameter(). It looks like there are two ways parameters are processed, and for simpler queries, this doesn't happen.

      When this happens, the parameters are gathered using parameter visitors. But subquery did not delegate its parameters to the visitor, so they were omitted. I've fixed this by:

      Index: openjpa-persistence/src/main/java/org/apache/openjpa/persistence/criteria/SubqueryImpl.java
      --- openjpa-persistence/src/main/java/org/apache/openjpa/persistence/criteria/SubqueryImpl.java (revision 1828187)
      +++ openjpa-persistence/src/main/java/org/apache/openjpa/persistence/criteria/SubqueryImpl.java (working copy)
      @@ -365,4 +361,18 @@
           public StringBuilder asVariable(AliasContext q) {
               return asValue(q);
      +    @Override
      +    public void acceptVisit(CriteriaExpressionVisitor visitor) {
      +        // $TODO: this should be all expressions, not just parameters,
      +        // but I don't know exactly how I would get those, plus this is so far
      +        // only used for gathering parameters, so...
      +        Set<ParameterExpression<?>> pSet = _delegate.getParameters();
      +        Expression<?>[] expressions = new Expression<?>[pSet.size()];
      +        int i = 0;
      +        for (ParameterExpression pe : pSet) {
      +            expressions[i++] = pe;
      +        }
      +        Expressions.acceptVisit(visitor, this, expressions);
      +    }

      Note, that because I have other fixes in this file due to OPENJPA-2733, so the diff will need to be manually applied, and imports adjusted.




            • Assignee:
              pveselov Pawel Veselov
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