code: @Override
  	public CloseableIterator<ZooPC> readAllObjects(long schemaId, boolean loadFromCache) {
  		SchemaIndexEntry se = schemaIndex.getSchema(schemaId);
  		if (se == null) {
  			throw DBLogger.newUser("Schema not found for class: " + schemaId);
  		}
  		
  		return new ObjectPosIterator(se.getObjectIndexIterator(), cache, objectReader, 
  		        loadFromCache);
  	}
docs: Read objects.
  Only required for queries without index, which is worth a warning anyway.
  SEE oidIterator()!
  @param schemaId Schema ID
  @param loadFromCache Whether to load data from cache, if possible