restore

问题 I want to store the entire application state and then restore it on the next start. Is there a library which would make it easier for me? Or does anyone of you have any suggestions? Standalone Application 回答1: There is a design pattern that is used for your purpouse, and it is the Memento Pattern. The memento pattern is implemented with three objects: the originator, a caretaker and a memento. The originator is some object that has an internal state. The caretaker is going to do something to

问题 As you know, Cassandra cluster have replication to prevent data loss even if some node in the cluster down. But in the case that an admin accidentally drop a table with big amount of data, and that command had already executed by all the replica in cluster, is this means you lost that table and cannot restore it? Is there any suggestion to cope with this kind of disaster with short server down time? 回答1: From cassandra docs: auto_snapshot (Default: true ) Enable or disable whether a snapshot

问题 I'm implementing backup and restore (via Dropbox) of a user's Core Data persisted data. For a restore I pull the files down from Dropbox and store them temporarily in the Documents directory. Then I create a new NSPersistentContainer and use it to replace the current persistent store (in the ApplicationSupport directory) before deleting the no longer needed files in the Documents directory. I'm using the MasterDetail template for now and so I have the usual time-stamped entities and the

问题 In android,Google recommends us to save the global variables in Application. But there is a problem, if the android os kill the application because of low of memory, the application will be re-oncreate and the global variables I saved will be lost. I don't know when to save/restore these variables,application doesn't give us some methods such as onsaveinstancestate()/onrestoreinstancestate(). I have one idea but I can't make sure it can work well. I see some app will go to slashScreen when os

问题 I'm struggling to find any information about creating backups of core data. My ultimate goal is to allow the user to create multiple backups, and restore from a selected backup. I've found a sample project that allows you backup/restore locally or via iCloud in Objective-C, but nothing in swift. Can anyone help? Or point me in the right direction. I don't even know where to start with this one. 回答1: I've never needed to do this but if I did this is what I'd do. To make backups At any time,

问题 I have come across some very unexpected (and incredibly frustrating) functionality while trying to restore the state of a list of CheckBox es after a screen rotation. I figured I first would try to give a textual explanation without the code, in case someone is able to determine a solution without all the gory details. If anyone needs more details I can post the code. I have a scrolling list of complex View s that contain CheckBox es. I have been unsuccessful in restoring the state of these

问题 i just messed up big. The way it happened is so emberassing that I won't write it down :) So here's my problem: Github Repop deleted Local repo files delete by git rm -r Local repo new initalized Is there any chance how to restore my data? Luckily it's in a very very early stage of this project. Regards 回答1: git reset HEAD If you don't have any uncommited changes you care about then use git reset --hard HEAD 回答2: I am not sure I completely understand the state of your local repo, but if all

问题 I am reading tensorflow tutorial on saving and restoring model and came across the following statement: If assets need to be saved and written or copied to disk, they can be provided when the first MetaGraphDef is added. If multiple MetaGraphDefs are associated with an asset of the same name, only the first version is retained. What does assets in this context mean? Also another paragraphs says: We provide a Python implementation of the SavedModel builder. The SavedModelBuilder class provides

问题 BACKUP DATABASE [MPRM] TO DISK = N'\\rauf\shared\MPRM_15_5_10.BAK' WITH NOFORMAT, NOINIT, NAME = N'MPRM-Full Database Backup', SKIP, NOREWIND, NOUNLOAD, STATS = 10 The backup process worked, and I got a file named MPRM_15_5_10.BAK in my shared folder ( D:\shared\ ). This is a backup created from another machine. When I try to restore the backup, using the following script RESTORE DATABASE [MPRM] FROM DISK = N'\\rauf\shared\MPRM_15_5_10.BAK' WITH FILE = 1, NOUNLOAD, STATS = 10 I get the

问题 Is there a way to take a backup of a VM (image capture following the sysprep method) and then make that image in the gallery visible to someone under their subscription. For example, I create a VM, archive it off to the image gallery, then my colleague comes along and wants to create a VM from that image (the colleague cannot be a co-administrator on my subscription). Alternatively, is there just a way to move the VM to a different subscription without archving it off and recreating? Have