serialization

Java update data-structure changes to serialized file

I have a hashmap with large number of entry's which is serialized.If i make a small change in hashmap is it required that I overwrite the old file completely or is there an alternative ? public class HashMapSerial { public static void main(String[] args) { HashMap<String,Integer> hash=new HashMap<String, Integer>(100000); hash.p...

Assign Xml Values to dynamically created components

xml values are stored in 'arr' array collection. depending on the length of the array stored, the below described components are created and assign those values to relevant components dynamically. For Example: AdvanceSearch.mxml is one component, and another components as advanceSearchAtom.mxml. within 'advanceSearchAtom' has some sub ...

Custom property serialization

Hello, I have a class that contains a list of objects, say a list of cars : class Garage { public virtual List<Car> cars { get; set; } } The reason I can't directly serialize this list is that the type Car could have a lot of subclasses, and themselves could have other subclasses, and I'd like to avoid upd...

C# serialize large array to disk

I have a very large graph stored in a single dimensional array (about 1.1 GB) which I am able to store in memory on my machine which is running Windows XP with 2GB of ram and 2GB of virtual memory. I am able to generate the entire data set in memory, however when I try to serialize it to disk using the BinaryFormatter, the file size get...

How often should each object's GetObjectData method be called during custom serialization?

I'm serializing the data in my app using custom serialization i.e. each of the classes I'm storing has the [Serializable] attribute and implements ISerializable. The object graph being serialized is reasonably complex with lots of cross-references between the objects/classes. The serialization works, but it's pretty slow. :( By putting ...

Sending WPF User Controls over WCF or similar

I am building an application in the MVVM style where the actual views (UserControls) are stored remotely and hopefully sent via a WCF service to my main application window. I am doing this in order to avoid having the user reinstall the application each time a new view is added. However, when I try to return a User Control from my WCF ...

WCF and n-tier architecture and serialization performance

When working with 5-tier architecture (front-end => interface tier => business tier => database tier => database) using WCF service as the interface tier, having the client applications calling it's methods, should I use also WCF service for the business and database tiers? I ask because of all the serialization / deserialization that wi...

Boost serialization multiple objects

Hi all, Im trying to build a persistence module and Im thinking in serialize/deserialize the class that I need to make persistence to a file. Is possible with Boost serialization to write multiple objects into the same file? how can I read or loop through entrys in the file? Google protocol buffers could be better for me if a good perf...

Deserialize a Json string (in C#) without Json.Net

Hi everybody, I use the following lines to deserialize simple Json strings like this: string jSon = "{\"FirstName\":\"Foo\", \"LastName\":\"Bar\"}"; System.Web.Script.Serialization.JavaScriptSerializer oSerializer = new System.Web.Script.Serialization.JavaScriptSerializer(); Person personDeserialized = oSerializer.Deserialize<Person>(j...

[Android] What's the best practice to pass data between Activities? Should I favor Parceable over Serializable as Intent Extra?

I'm developing an app which basically navigates through a xml-feed. When I parse the feed or let's say the list, then each (list)item becomes a model. All the models are wrapped up in an array list. Now, when the user clicks on a list item, the underlying model is going to be serialized and sent as IntentExtra to the next Activity (e.g...

gson serialization of Date field in MS WCF compatible form

I access a web service in a POST method. I need to send to the server a json serialized object. In my Android class I have some string fields and a Date field. This Date field gets serialized like this: .... TouchDateTime":"Oct 6, 2010 5:55:29 PM"}" but to be compatible with the web service I need to have it like: "TouchDateTime":"\/...

How to Deserialize xml with muliple matching nodes to array in c#

Hi, I want to deserialise an xml document with a number of same name nodes into an IList in c# I do not have control over the xml and therefore cant change it. <root> <node1 name="" version="" /> <node1 name="" version="" /> <node1 name="" version="" /> <node1 name="" version="" /> <node2></node2> <node3></node3> </root> I have...

Which is faster to parse? Serialized string or plain PHP or something else?

So, for performance reasons, I need my app to store big arrays of data in a way that's fast to parse. I know JSON is readable but it's not fast to decode. So it's I should either convert my array into pure php code or I have to serialize it and then deserialize. So, which is faster? Are there any better solutions? I could do a benchmark ...

Limiting unserialize() to return arrays?

Is there any way to limit PHP's unserialize() to only parse arrays? For security reasons. Suppose there is is an evil __unserialize() magic method in the unserialized object I don't wanna call! ...

How can I keep -Xcheckinit from interfering with the deserialization of Scala objects?

When using the -Xcheckinit compiler option and implementing my own readObject method in a serializable class, I can't call any accessor functions on fields declared in the body of my class from the readObject method. Fields declared as constructor arguments are ok. When I do try to access a field declared in the class body, I get a scala...

Save Dataset to SQLite format file

I have a dataset with multiple tables. I can obviously do a Dataset.WriteToXML("Somefile.xml") What if I want to export the dataset to a SQLite formatted file. In other words I want to be able to write (i.e. serialize) the contents of the dataset to a SQLite file. Dataset.SerializeToSQLite("Sqliteformatted.bin") Similarly I want to ...

AppFabric cache and serializing IQueryable objects

Hello, I am experimenting with AppFabric caching and have run into an issue with saving retrieved data in the cache. The root of the problem is that it seems that AppFabric Caching requires the data to have DataContract and Datamember attributes applied to the class that is being saved. If that is the case, then how can I save this (si...

Byte swapping a struct

Okay I hate to ask this question ... but here goes. I am writing some code in C on an x86 machine. I want to send a struct over the network and and I want to convert the struct to Network Byte Order ... I understand all the drama about packing and the the gcc packing pragmas ... what I want to know is HOW do I convert a struct (or an arr...

Best way to implement a Favourites/Starred Tab?

What is the best and simplest way to have persistent data on android for a 'favourtes' tab? I have three types of objects which can be found on three different tabs and the user can choose to 'star' them and they get added to a favourites list. I'm not to sure what the best way of doing this is... Currently I'm adding the items to thre...

How can I easily store my C# data structure(XML serialiazable) into a database?

I have a C# data structure which consists of classes and collections which have references to each other. Currently I am using Serialization to store the structure in XML, which works as a handy way to save/load the structure into my application. If I want to be able to save/load the structure into a database, is there a simple way? Sho...