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Questions tagged [object-persistence]

147 questions
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Persistent Objects in ASP.NET

I'm trying to find the best way to persist an object or in use the same object at a later point in the code. So, I create an object, then you're redirected to another page(a form) that needs to use variables from that object. That form is submitted…
user204588
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Easy object persistence in Vala (like shelve/pickle)

I would like to transfer my code from Python to Vala, but i ran into problems. Is there an easy method to store objects created in Vala, like you can do it with pickle/shelve? I would like to avoid running an entire database.
fahrradflucht
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In Domain Driven Design, does the Repository pattern maintain a reference to the objects?

I understand that the repository pattern abstracts the persistence of domain objects, allowing a developer to read/write/delete objects from persistent storage without knowing how the object is stored (SQL, NoSQL, flat files, etc). I'm quite fond of…
Magnus
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easy object persistence strategy - hibernate?

I'm doing a Java software-project at my university that mainly is about storing data-sets (management of software tests). The first thing I thought of was a simple SQL DB, however the necessary DB scheme is not available for now (let's say the…
wishi
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File Upload Error in Classic ASP

Set PersistsUpload = Server.CreateObject("Persits.Upload.1") PersistsUpload.Save set persistsfile = PersistsUpload.Files("file") When I am uploading the file the following error is returned: Request.BinaryRead failed: Unspecified error
user2717544
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How to persist instance of a class in Python

Is there a way to persist instances of a class in memory or file system in Python? Can I do this with shelve? The following line is part of this tutorial which takes a long time to execute, and I need to cache it for next program executions. clf =…
hpn
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Using joda DateTime Range Key with AWS DynamoDB Object Persistence model

I've got a dynamodb table with a timestamp ("creationDate") as a range. The model is using a joda DateTime to make it easy to use (compatibility with the rest of the code). To be able to make between queries on this range, I used a numeric type for…
cplc
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Object Persistence in Python with many files open

I'm trying to save the state of my program using pickle, so that I can jump to different states with objects created on a different run. The issue is that virtually all of these objects (there are quite a few) all have logger objects, so they are…
H X
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How to Override GetChildren and GetChildOwner to persist objects?

I have been trying to choose a solution to store/restore some objects from files in my new Delphi project, and so far the most promising and more educative option I found was in a blocko blog post but he fails by not explaining how to Override…
NaN
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Bindings, properties and object persistence

First: I really hope I placed the question at the right place so please correct me if I am on the wrong track..! I have a window to display data that is updated in intervals in a table view. This data is managed by a Controller object which is the…
Simon
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Persistent Object defined by a CronJob on Rails

I have a report that takes too long to be assembled, so I would like to make a CronJob (with rufus scheduler gem) to generate the report after midnight when there´s no traffic on my application. The question is: do I need to save the result of the…
Hamdan
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Hibernate creates two primary keys when I only want one

I have a Hibernate class called Expression (simplified here for your viewing pleasure): @Entity public class Expression { @Id @GeneratedValue private long id; private String data; @OneToMany(fetch=FetchType.EAGER) …
Han
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CoreData: base class attributes not persistent

I have created a simple base class with 3 parameters (OBJECT1, see below) and implemented a Core Data model where there is one entity derived from this class, with one attribute (order). Problem is, when I save the context, only the dynamic…
user1595462
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Spring repository generation versus property naming convention

I'm using javax.persistence and Spring and I have a simple entity class and a simple CrudRepository that are working well until I try and add my own findByXXX() method. My entity class is as follows: @Entity public class Node { @Id …
dave
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Storing a NSArray of my Custom Objects in NSUserDefaults

The requirement is that I want to store NSArray of my custom objects in NSUserDefaults. Following is the code from my example - (void)viewDidLoad { [super viewDidLoad]; sampleArray=[[NSMutableArray alloc]init]; MyClass *obj1=[[MyClass…
TryinHard
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