I have this function: /** * Helper function that adds the values of b to the elements of a, treating * all keys that exist in b but not in a, as existent in a with value 0. NB: * It operates IN PLACE. * @param a The {@link java.util.Map} which will hold the result * @param b The {@link java.util.Map} which will be added to a */...
ok this is the thing I have right now which is working quite well except its a bit slow: Public Function GetList() As List(Of SalesOrder) Try Dim list As New List(Of SalesOrder) Dim ds As DataSet ds = cls.GetSalesOrderList 'CLS is the data access class For i = 0 To ds.Tables(0).Rows.Count - 1 Dim row As Data...
I have an existing class for serializing and deserializing objects to/from XML. It's a generic class with a single type parameter T whose only constraint is where T : IXmlSerializable. However, I want to still be able to use this class on classes that do not implement IXmlSerializable but have the [Serializable] attribute. How could I...
Is there a way to do something like this in c#? Consider the following example and assume that Child1, Child2, Child3 are all children of Parent - class Class1 { SomeObject< Parent > mSomeObject; Class1() { if (condition1) mSomeObject = new SomeObject<Child1>(); else if (condition2) mSomeObje...
I'm trying to create a simple Clamp (so that I can bound the values of anything comparable ... mostly for number types such as int, double, etc.) The problem is if I do the following I get an error, but according to MSDN IComparable's CompareTo is supposed to be able to handle null values. Quote: "By definition, any object compares grea...
Example, I have the following interface and classes: public interface IRole { DateTime Since {get;} DateTime Until {get;} } public class Manager : IRole { public DateTime Since {get; private set;} public DateTime Until {get; private set;} } public class Employee : IRole { public DateTime Since {get; private set;} ...
How to convert List<int> to List<long> in C#? ...
please note that I am trying to use NotifyCollectionChangedAction.Add action instead of .Reset. the latter does work, but it is not very efficient with large collections. so i subclassed ObservableCollection: public class SuspendableObservableCollection<T> : ObservableCollection<T> for some reason, this code: private List<T> _cache...
I am getting this error with the following code: The method getItemProperty(capture#2-of ? extends GenericTest.Item) in the type GenericTest.BaseContainer<capture#2-of ? extends GenericTest.Item> is not applicable for the arguments (GenericTest.Item) import org.junit.Test; public class GenericTest { public class Item { priva...
I have a class Slide, of which I want to place several instances in the clipboard. It works perfectly fine for a single instance. But when I try to, for example, put a List<Slide> in the clipboard, the SetDataObject call will silently fail. Internally, a COMException will be thrown and is swallowed. This is because List does not impleme...
I did the following: container.Register(Component.For<Dictionary<string, string>>() .Instance(ServiceDictionaryInstance) .Named("serviceDictionary")); The class consumes the component is: public class BusinessService : IDecisionFilter { private readonly Dictionary<str...
Hi, I have following list of users. StudentBean and ProfessorBean are the subtypes of UsersBean. List<? extends UsersBean> users = this.getUsers(locationId); for(UsersBean vo :users) { System.out.println("Name : "); } Here i want to print professorbean's info OR StudentBeans's info. Is there any way to get professor or student bean me...
Hi! I have confusing situation. Base Generic Type and successor public abstract class BaseType<TEntity> : where TEntity : BaseType<TEntity> public class AnyType : BaseType<AnyType> It looks like a generic loop))) I need Method like public void Method<T>(T data) { if(typeof(T).IsSubclassOf(BaseType<????>)) convert data to BaseType<...
EDIT: Rewrote the question. Added bounty as its important for me. The final hint with which i can get findByAttributes to work (without reimplementing it in subclasses) will get my points. In my app i'm doing typesafe database queries with the new JPA2 Criteria Query. Therefore I have a trait DAO which should be (re)usable for ALL entit...
I have a class called Order which has properties as OrderId,OrderDate,Quantity,Total. I have a List of this "Order" class. List<Order> objListOrder=new List<Order> (); objListOrder=GetOrderList(); // method to fill list of orders Now i want to sort the list based on one property of the Order object(Ex :i need to sort by the order dat...
Hi Attempting to generics-ify some legacy code, I'm stuck. I have a ParentObject which wraps a ChildObject to provide group-type operations on the ChildObject. Most usefully, it allows iteration over the collection of child objects. When I try to add some generics to the mix, I can't work out how to make it play friendly with the itera...
Hello, I'm trying to convert a generic value into an array of generic values so that I can comma delimit them. However, I can't convert from my generic type into an array of generic types. hopefully some code will help make things clearer... public T Item { get { return item; } set { item = value; } } ...
I have four different Business objects and each calls its corresponding FillBusinessObject method to fill all the individual object properties one by one. Now I wish to create a common method which should be able to fill each type of business object. I've created a base class from which all business objects inherit but I am not able to f...
I am getting ready to create a generic EventArgs class for event args that carry a single argument: public class EventArg<T> : EventArgs { // Property variable private readonly T p_EventData; // Constructor public EventArg(T data) { p_EventData = data; } // Property for EventArgs argument public...
I am aware of formatted DataContract names, as described here: http://msdn.microsoft.com/en-us/library/ms731045.aspx (Customizing Data Contract Names for Generic Types near the bottom). Example: [DataContract( Name = "SearchCriteriaFor{0}", Namespace = "http://schema.mycompany.com/MyProject/" )] public class SearchCriteria<T> { ... ...