Ejemplo n.º 1
0
  /**
   * Add on association (one-to-one, many-to-one, or a collection) to a list of associations to be
   * fetched by outerjoin
   */
  private void addAssociationToJoinTree(
      final AssociationType type,
      final String[] aliasedLhsColumns,
      final String alias,
      final PropertyPath path,
      final int currentDepth,
      final JoinType joinType)
      throws MappingException {

    Joinable joinable = type.getAssociatedJoinable(getFactory());

    // important to generate alias based on size of association collection
    // *before* adding this join to that collection
    String subalias = generateTableAlias(associations.size() + 1, path, joinable);

    // NOTE : it should be fine to continue to pass only filters below
    // (instead of LoadQueryInfluencers) since "from that point on" we
    // only need to worry about restrictions (and not say adding more
    // joins)
    OuterJoinableAssociation assoc =
        new OuterJoinableAssociation(
            path,
            type,
            alias,
            aliasedLhsColumns,
            subalias,
            joinType,
            getWithClause(path),
            hasRestriction(path),
            getFactory(),
            loadQueryInfluencers.getEnabledFilters());
    assoc.validateJoin(path.getFullPath());
    associations.add(assoc);

    int nextDepth = currentDepth + 1;
    //		path = "";
    if (!joinable.isCollection()) {
      if (joinable instanceof OuterJoinLoadable) {
        walkEntityTree((OuterJoinLoadable) joinable, subalias, path, nextDepth);
      }
    } else {
      if (joinable instanceof QueryableCollection) {
        walkCollectionTree((QueryableCollection) joinable, subalias, path, nextDepth);
      }
    }
  }