serializable

问题 I'm trying to get my clipboard to receive some custom data in a drag and drop. The custom data is another java type. This other type does implement serializable, so I'm really not sure why this isn't working. Any ideas are appreciated! imgView.setOnDragDetected(new EventHandler<MouseEvent>() { public void handle(MouseEvent event) { ClipboardContent content = new ClipboardContent(); content.put(dataFormat, RHSIconizedToken.this); Dragboard db = imgView.startDragAndDrop(TransferMode.ANY); db

问题 so from what i gather, Socket connections are neither serializable or parcelable, but i need to pass a bluetooth connection to another Activity. i do not want to write a Service as a middle man, so please don't post this as a solution. i've heard that there is a way to pass these types of Objects using a custom Application interface, but i cannot, for the life of me, find a working example of this. i've seen plenty of documentation that says something to the effect of "this is possible" but

问题 I am writing a .NET Remoting application. I have my dll, server, and client all working correctly. However, when I try to change my method call to take an object parameter instead of a simple type like an int, it complains with this error. Type System.Runtime.Remoting.ObjRef and the types from it (such as System.Runtime.Remoting.ObjRef) are not permitted to be deserialized at this security level. The method is something like this. public List<Orders> GetOrders(int UserID) { //Works public

问题 To get more control over serialization, I have converted a class from [DataContract] to [Serializable], implementing both GetObjectData and the special deserializing constructor. When I do this, the XML emitted now has type information applied to all elements. I don't want this superfluous information, and I'm wondering how to inform the serializer to not output it. Here's the sample code that uses [DataContract]: [DataContract(Namespace = "")] class Test { public Test() { } [DataMember]

问题 I have class mentioned below: public class JsonHistoryList extends ArrayList<JsonHistory> implements Serializable{} I wish to pass it through intent using timerService.putExtra(TimerService.ACTIVITY_LIST_ARG, activities); But after I receive it (way below) JsonHistoryList temp = (JsonHistoryList) intent.getSerializableExtra(TimerService.ACTIVITY_LIST_ARG); in my service it gives me exception: Caused by: java.lang.ClassCastException: java.util.ArrayList cannot be cast to com.epstim.captime

问题 I wonder when Java Class is instance of Serializable. As I know class is serializable only if it implements Serializable interface. I'm trying to use junit to generate entity class (from some kind of template) and check if it is serializable. My generated class (which does NOT implement Serializable) looks like: package test; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.Table; import javax.annotation.Generated; import javax.persistence.Id; @Entity

问题 Java provides me by <? extends class> a way of filtering the java classes that you can use to build in this case the new HashMap, for example: I can do that: Map<String,? extends Serializable> map1 = new HashMap<String,String>(); It is correct, because String implements Serializable, so the compiler let me do that. But when i try to do it: Map<String,GenericClass<? extends Serializable>> map2 = new HashMap<String, GenericClass<String>>(); Being the GenericClass as it: public class

问题 I meet a very strange problem on Spark about serialization. The code is as below: class PLSA(val sc : SparkContext, val numOfTopics : Int) extends Serializable { def infer(document: RDD[Document]): RDD[DocumentParameter] = { val docs = documents.map(doc => DocumentParameter(doc, numOfTopics)) docs } } where Document is defined as: class Document(val tokens: SparseVector[Int]) extends Serializable and DocumentParameter is: class DocumentParameter(val document: Document, val theta: Array[Float]

问题 I meet a very strange problem on Spark about serialization. The code is as below: class PLSA(val sc : SparkContext, val numOfTopics : Int) extends Serializable { def infer(document: RDD[Document]): RDD[DocumentParameter] = { val docs = documents.map(doc => DocumentParameter(doc, numOfTopics)) docs } } where Document is defined as: class Document(val tokens: SparseVector[Int]) extends Serializable and DocumentParameter is: class DocumentParameter(val document: Document, val theta: Array[Float]

问题 I want to share java objects across different applications. As long as I use the same package names in the different projects it works fine. But if I change the package names it doesn't work anymore. I tried to solve this by extend the ObjectInputStream class and overriding the readClassDescriptor method. But by doing so I get the following error: java.io.StreamCorruptedException: invalid type code: 00 ... dont know how to solve this problem. Here is the code I use for the extended