extension-methods

I want to make an extension method in Unity3d for the Vector3 class. But I don't quite seem to get it. This is what I have: public static class ExtensionMethods{ public static Vector3 MaxValue(this Vector3 _vec3) { return new Vector3(float.MaxValue,float.MaxValue,float.MaxValue); } } Now I want to make a Vector3.MaxValue just like float.MaxValue with this line of code: Vector3 closestPoint = Vector3.MaxValue; But then I get this error: error CS0117: `UnityEngine.Vector3' does not contain a definition for `MaxValue' I know that this would work: Vector3 closestPoint = new Vector3().MaxValue();

I am looking to implement a functionality in a list of object as I would in C# using an extension method. Something like this: List<DataObject> list; // ... List initialization. list.getData(id); How do I do that in Java? Java does not support extension methods. Instead, you can make a regular static method, or write your own class. user1686250 Extension methods are not just static method and not just convenience syntax sugar, in fact they are quite powerful tool. The main thing there is ability to override different methods based on different generic’s parameters instantiation. This is

I am attempting to do some data conversion. Unfortunately, much of the data is in strings, where it should be int's or double, etc... So what I've got is something like: double? amount = Convert.ToDouble(strAmount); The problem with this approach is if strAmount is empty, if it's empty I want it to amount to be null, so when I add it into the database the column will be null. So I ended up writing this: double? amount = null; if(strAmount.Trim().Length>0) { amount = Convert.ToDouble(strAmount); } Now this works fine, but I now have five lines of code instead of one. This makes things a little

I've read at various websites that Thread.Abort is not very good to use. In this case, how do you implement a timeout pattern? For instance, I've read that MS uses the pattern below (which I've wrapped in an extension method) throughout the framework. Personally, I think this is a pretty cool extension, but I'm worried about the Thread.Abort. Does anyone have a better way? public static bool CallandWait(this Action action, int timeout) { Thread subThread = null; Action wrappedAction = () => { subThread = Thread.CurrentThread; action(); }; IAsyncResult result = wrappedAction.BeginInvoke(null,

I have the following method: public static TEventInvocatorParameters Until <TEventInvocatorParameters, TEventArgs>(this TEventInvocatorParameters p, Func<TEventArgs, bool> breakCond) where TEventInvocatorParameters : EventInvocatorParameters<TEventArgs> where TEventArgs : EventArgs { p.BreakCondition = breakCond; return p; } And this class public class EventInvocatorParameters<T> where T : EventArgs { public Func<T, bool> BreakCondition { get; set; } // Other properties used below omitted for brevity. } Now, I have the following problems: This extension method shows on all types, even string .