public function getEntityContainerIterator()
    {
        if (is_null($this->entityContainerIterator)) {
            $this->entityContainerIterator = new Iterator($this->getEntityContainerMap()->getAll());
        }
        return $this->entityContainerIterator;
    }
public function getEntityContainerIterator()
    {
        if (is_null($this->entityContainerIterator)) {
            $this->entityContainerIterator = new Iterator($this->getEntityContainerMap()->getAll());
        }
        return $this->entityContainerIterator;
    }
public function getEntityContainerIterator ( ) { if ( is_null ( $ this -> entityContainerIterator ) ) { $ this -> entityContainerIterator = new Iterator ( $ this -> getEntityContainerMap ( ) -> getAll ( ) ) ; } return $ this -> entityContainerIterator ; }
Iterator for entity container map

The iterator pulls a copy of the entity container from the map storage.
if the map storage changes, for exampe a entity was attached or detached,
the iterator have to be reset.
@see FormAbstract::resetEntityIterator()

@return    \Naucon\Utility\Iterator
Iterator for entity container map