serialization

NSData from a custom object

。_饼干妹妹 提交于 2019-12-23 18:38:08
问题 I'm working on client/server application which uses AsyncSocket. For transferring data, it uses NSData . How can I insert my custom object, containing NSNumber s, NSInteger s, and NSString s into an NSData object and then get it back out? 回答1: One way to insert (serialize) a custom object into an NSData object is to use NSCoding and NSKeyedArchiver. First, have your custom object implement the NSCoding protocol. Example here: http://developer.apple.com/library/ios/#documentation/Cocoa

com.google.gson.JsonSyntaxException: java.lang.IllegalStateException: Expected BEGIN_ARRAY but was STRING

喜你入骨 提交于 2019-12-23 18:30:14
问题 This is my first approach to serialization using Gson. I recive facebook response to my android application like this My Json: {"data": [ { "pic_square": "https://fbcdn-profile-a.akamaihd.netxxxx1388091435_797626998_q.jpg", "uid": "10202xxx852765", "name": "Mister X" }, { "pic_square": "https://fbcdn-profile-a.akamaihd.netxxxx1388091435_797626998_q.jpg", "uid": "10202xxx852765", "name": "Mister X" } ] } try { final GsonBuilder builder = new GsonBuilder(); final Gson gson = builder.create();

Why can't a Dictionary<key,value> be serialized? Or can it?

我们两清 提交于 2019-12-23 18:18:43
问题 (Havent spotted a question asking this). Why cant a Dictionary be serialized? Most resources, websites, blogs etc say that it cannot be serialized. However reading "CLR via C#" 3rd edition, page 664 gives Dictionary as an example of an object graph which can be serialized. Note that this chapter talks about Binary Serialization. So is it that it can be serialized using the BinaryFormatter but it cannot be XML serialized? Or is there some difference here that Im missing between an IDictionary

How to store complex objects into hadoop Hbase?

十年热恋 提交于 2019-12-23 18:14:53
问题 I have complex objects with collection fields which needed to be stored to Hadoop. I don't want to go through whole object tree and explicitly store each field. So I just think about serialization of complex fields and store it as one big piece. And than desirialize it when reading object. So what is the best way to do it? I though about using some kind serilization for that but I hope that Hadoop has means to handle this situation. Sample object's class to store: class ComplexClass { <simple

Which xml serialization library is performance oriented? [closed]

随声附和 提交于 2019-12-23 18:04:30
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 years ago . What is the best XML serialization library for Java if performance is the deciding factor? Salient Points of application Rest Based API. Tomcat Servlet Container Requires Java Object to XML Serialization No requirement for Deserialization or heavy binding libraries. Requires open source libraries. Current

Getting one value out of a serialized array in PHP

大城市里の小女人 提交于 2019-12-23 17:50:30
问题 What would you say is the most efficient way to get a single value out of an Array. I know what it is, I know where it is. Currently I'm doing it with: $array = unserialize($storedArray); $var = $array['keyOne']; Wondering if there is a better way. 回答1: You are doing it fine, I can't think of a better way than what you are doing. You unserialize You get an array You get value by specifying index That's the way it can be done. 回答2: Wondering if there is a better way. For the example you give

Storing objects between requests in PHP without serialising

孤街醉人 提交于 2019-12-23 17:34:56
问题 I am writing a stateful web application in PHP in which the state potentially contains lots of objects. At this moment, I am keeping all these objects in $_SESSION and have them serialised at the end of the request. This is a bit of a pain, because serialising the entire session takes seconds, and unserialising it takes even more time. I wanted to try APC, because I hoped that the objects are then just being memcopied, instead of serialised. Alas, it seems that if I feed apc_store($object) an

Silverlight passing JSON object incorrectly?

北城以北 提交于 2019-12-23 17:33:50
问题 I have a Silverlight class marked with the ScriptableType & ScriptableMember and I expect to be able to pass the object from Silverlight to javascript. When I call JSON.stringify (in javascript) I expect to receive a JSON representation of the object but all I get is {} The class is defined as: [ScriptableType()] public class MyEvent { [ScriptableMember(ScriptAlias = "eventContent")] public int EventContent { get; set; } } I pass the object from Silverlight like this: var jsonObject = new

Thymeleaf inline javascript ignore null

喜欢而已 提交于 2019-12-23 17:29:07
问题 I'm using Thymeleaf to inline my very large Java Object into my HTML as a JSON: <script th:inline="javascript"> /*<![CDATA[*/ var myBigObject = /*[[${myBigJavaObject}]]*/ []; /*]]>*/ </script> This big Object contains a lot of null values which I don't want in my JSON since it increases the size by about 70% (~1MB). For Spring MVC Jackson serialization I successfully use the following annotation on my model classes to automatically remove all null values in my web-service JSON responses:

How do I send or save a function and recv or restore a function and execute it in C++?

我与影子孤独终老i 提交于 2019-12-23 17:27:41
问题 Is there any way I can send or save a function as file? I want to do this in C++ on a Windows platform. I assume that there is some convention between reader and sender or saver Is it OK if I send like below? server side: label1: int func1(int somevar){ int a = 1; return somevar+a; } label2: send(sockfd, label2-label1, sizeof(int), 0) //send a size first send(sockfd, label1, label2-label1, 0); // send a "function" thanks in advance! 回答1: No, there's no way to do that in C++. Languages which