from abc import ABC, abstractmethod
from eventsourcing.domain.model.events import EventWithOriginatorID, EventWithOriginatorVersion, EventWithTimestamp
[docs]class AbstractSnapshop(ABC):
@property
@abstractmethod
def topic(self):
"""
Path to the class of the snapshotted entity.
"""
@property
@abstractmethod
def state(self):
"""
State of the snapshotted entity.
"""
@property
@abstractmethod
def originator_id(self):
"""
ID of the snapshotted entity.
"""
@property
@abstractmethod
def originator_version(self):
"""
Version of the last event applied to the entity.
"""
[docs]class Snapshot(EventWithTimestamp, EventWithOriginatorVersion, EventWithOriginatorID, AbstractSnapshop):
[docs] def __init__(self, originator_id, originator_version, topic, state):
super(Snapshot, self).__init__(
originator_id=originator_id,
originator_version=originator_version,
topic=topic,
state=state,
)
@property
def topic(self):
"""
Path to the class of the snapshotted entity.
"""
return self.__dict__['topic']
@property
def state(self):
"""
State of the snapshotted entity.
"""
return self.__dict__['state']