Source code for jina.types.document.mixins.version

import functools

[docs]class VersionedMixin: """ Helper class to add versioning to an object. The version number is incremented each time an attribute is set. """ version = 0 def _increase_version(self): super().__setattr__('version', self.version + 1) def __setattr__(self, attr, value): super().__setattr__(attr, value) self._increase_version() def __delattr__(self, attr): super(VersionedMixin, self).__delattr__(attr) self._increase_version()
[docs]def versioned(fn): """ Decorator function that increases the version number each time the decorated method is called. The class of the decorated method must be a subclass of :class:`VersionedMixin` :param fn: the method to decorate :return: decorated function """ @functools.wraps(fn) def wrapper(self, *args, **kwargs): self._increase_version() return fn(self, *args, **kwargs) return wrapper