public Iterator < Map . Entry < FieldDescriptorType , Object > > iterator ( ) { if ( hasLazyField ) { return new LazyIterator < FieldDescriptorType > ( fields . entrySet ( ) . iterator ( ) ) ; } return fields . entrySet ( ) . iterator ( ) ; }
Get an iterator to the field map . This iterator should not be leaked out of the protobuf library as it is not protected from mutation when fields is not immutable .