blob: 49892ffcd1b2319946a2de00d072c4da184b9c59 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
import abc
class Serializable(metaclass=abc.ABCMeta):
"""
Abstract Base Class that defines an API to save an object's state and restore it later on.
"""
@classmethod
@abc.abstractmethod
def from_state(cls, state):
"""
Create a new object from the given state.
"""
raise NotImplementedError()
@abc.abstractmethod
def get_state(self):
"""
Retrieve object state.
"""
raise NotImplementedError()
@abc.abstractmethod
def set_state(self, state):
"""
Set object state to the given state.
"""
raise NotImplementedError()
def copy(self):
return self.from_state(self.get_state())
|
