コード例 #1
0
 public void start(QueryTranslatorImpl q) {
   if (!continuation) {
     reset(q);
     path.setLength(0);
     joinSequence = new JoinSequence(q.getFactory()).setUseThetaStyle(useThetaStyleJoin);
   }
 }
コード例 #2
0
  public void token(String token, QueryTranslatorImpl q) throws QueryException {

    if (token != null) path.append(token);

    String alias = q.getPathAlias(path.toString());
    if (alias != null) {
      reset(q); // reset the dotcount (but not the path)
      currentName = alias; // after reset!
      currentPropertyMapping = q.getPropertyMapping(currentName);
      if (!ignoreInitialJoin) {
        JoinSequence ojf = q.getPathJoin(path.toString());
        try {
          joinSequence.addCondition(
              ojf.toJoinFragment(q.getEnabledFilters(), true)
                  .toWhereFragmentString()); // after reset!
        } catch (MappingException me) {
          throw new QueryException(me);
        }
        // we don't need to worry about any condition in the ON clause
        // here (toFromFragmentString), since anything in the ON condition
        // is already applied to the whole query
      }
    } else if (".".equals(token)) {
      dotcount++;
    } else {
      if (dotcount == 0) {
        if (!continuation) {
          if (!q.isName(token)) throw new QueryException("undefined alias: " + token);
          currentName = token;
          currentPropertyMapping = q.getPropertyMapping(currentName);
        }
      } else if (dotcount == 1) {
        if (currentName != null) {
          currentProperty = token;
        } else if (collectionName != null) {
          // processCollectionProperty(token, q.getCollectionPersister(collectionRole),
          // collectionName);
          continuation = false;
        } else {
          throw new QueryException("unexpected");
        }
      } else { // dotcount>=2

        // Do the corresponding RHS
        Type propertyType = getPropertyType();

        if (propertyType == null) {
          throw new QueryException("unresolved property: " + path);
        }

        if (propertyType.isComponentType()) {
          dereferenceComponent(token);
        } else if (propertyType.isEntityType()) {
          if (!isCollectionValued()) dereferenceEntity(token, (EntityType) propertyType, q);
        } else if (propertyType.isCollectionType()) {
          dereferenceCollection(token, ((CollectionType) propertyType).getRole(), q);

        } else {
          if (token != null) throw new QueryException("dereferenced: " + path);
        }
      }
    }
  }