serialization

问题 Using Java's native serialization, I'm intermittently seeing ClassCastExceptions java.lang.ClassCastException: myCompany.MyClass$MembershipServiceMethod cannot be cast to java.io.ObjectStreamClass or (less frequently) java.lang.ClassCastException: java.lang.String cannot be cast to java.io.ObjectStreamClass when I deserialize objects of a particular immutable class. That is to say, the exception is always thrown for particular serialized representations, but most objects can be successfully

问题 Using Java's native serialization, I'm intermittently seeing ClassCastExceptions java.lang.ClassCastException: myCompany.MyClass$MembershipServiceMethod cannot be cast to java.io.ObjectStreamClass or (less frequently) java.lang.ClassCastException: java.lang.String cannot be cast to java.io.ObjectStreamClass when I deserialize objects of a particular immutable class. That is to say, the exception is always thrown for particular serialized representations, but most objects can be successfully

问题 Can someone give me good explanation why this has to fail? const int bufferSize = 2 * 1024, testValue = 123456; var buffer = new byte[bufferSize]; var serializer = new DataContractSerializer(typeof(int)); //Serialize value using (var memStream = new MemoryStream(buffer)) using (XmlDictionaryWriter writer = XmlDictionaryWriter.CreateBinaryWriter(memStream)) serializer.WriteObject(writer, testValue); //Deserialize value using (var memStream = new MemoryStream(buffer)) using (XmlDictionaryReader

问题 Can someone give me good explanation why this has to fail? const int bufferSize = 2 * 1024, testValue = 123456; var buffer = new byte[bufferSize]; var serializer = new DataContractSerializer(typeof(int)); //Serialize value using (var memStream = new MemoryStream(buffer)) using (XmlDictionaryWriter writer = XmlDictionaryWriter.CreateBinaryWriter(memStream)) serializer.WriteObject(writer, testValue); //Deserialize value using (var memStream = new MemoryStream(buffer)) using (XmlDictionaryReader

问题 I want to serialize an element that extends HashMap with Simple. @Root(name = "settings") @ElementMap(entry="element", key="id", attribute=true, required=true, empty=true) public class Settings extends HashMap<String, Object> { ... Whenever I serialize it, I get no errors, but I also get an empty file that looks like this: <settings/> Is there any way to do this without creating an inner object instead, and then having to delegate all of the methods to it? 回答1: I suppose the reason is, that

问题 I want to serialize an element that extends HashMap with Simple. @Root(name = "settings") @ElementMap(entry="element", key="id", attribute=true, required=true, empty=true) public class Settings extends HashMap<String, Object> { ... Whenever I serialize it, I get no errors, but I also get an empty file that looks like this: <settings/> Is there any way to do this without creating an inner object instead, and then having to delegate all of the methods to it? 回答1: I suppose the reason is, that

问题 I have a class i want to change the properties of in the editor. So i made my class System.Serializable and made the variables public that i want to be able to change. Like so: [System.Serializable] public class UIOptionsRing { public float Radius, DistanceBetweenPoints, StartOffset, GapInDegrees; public int? GapAfterElementNumer = 3; //this var doesnt show up public Vector3 CircleCenter; public GameObject CircleElementsContainer; } But the problem i am having is that the GapAfterElementNumer

问题 I need to write a server in C++/Obj-C that can receive streamed data from several clients built in Java and C++. The challenge: I need to serialize and deserialize the data structures efficiently. One C++ client will be generating 128x96x2-dimensional float arrays, plus some metadata, about 30 times per second (video features). A Java client will be generating a smaller feature vector -- probably 200 values, 1-10 times per second. I've about resigned myself to rolling my own implementation,

问题 I've got a C# structure of classes with an abstract base class and various classes derived from this abstract class. [System.Xml.Serialization.XmlInclude(typeof(B))] public abstract class A { ... } [Serializable] [XmlType("typename")] public class B : A { ... } Furthermore, I'm using an instance of class B within another class C as a field with its abstract type like this: public class C { ... public A myItem { get; set; } //A is actually of type B ... } Now, when I serialize my class C via

问题 I've got a C# structure of classes with an abstract base class and various classes derived from this abstract class. [System.Xml.Serialization.XmlInclude(typeof(B))] public abstract class A { ... } [Serializable] [XmlType("typename")] public class B : A { ... } Furthermore, I'm using an instance of class B within another class C as a field with its abstract type like this: public class C { ... public A myItem { get; set; } //A is actually of type B ... } Now, when I serialize my class C via