I would like to use the Iesi.Collections HashedSet class for entity collections in NHibernate. The functionality I want is that duplicate entities cannot be added. I would like entities to be considered duplicate if they share the Id (i.e. primary key) field, or, if they have Id == 0 (i.e. unsaved), then certain key properties are compar...
I am using using Microsoft .NET Framework 4.0. I have run into this using Aggregate on a Dictionary<T, List<T>> to extract the set of type T values used across all type List<T> lists in the dictionary. Here is the simplest case I could come up with that exhibits the same behaviour. First, as the documentation states, the following does...
in java... public class someclass { private HashSet<Someobject> contents = new HashSet<Someobject>(); private Set<Someobject> contents2 = new HashSet<Someobject>(); } what's the difference? in the end it's both a hashset isn't it? the second one looks just wrong to me but i have seen it frequently used, accepted and working......
I've written a class called PuzzleBoard that represents an nxn board. I will be keeping several PuzzleBoard objects in a HashSet, so I have to overwrite the 'int hashCode()' method. Below are the fields of my class: private int N; private int[][] puzzle; private int blankCellX; private int blankCellY; private int cost; What Ecli...
I created an object HashSet, and the value is an object (Triple) which is my own class. But I get a strange thing, when there are two equal objects on my HashSet, is it possible? Here is my overriding method for the equals in the class Triple @Override public boolean equals(Object other){ if (other == null) return false; if (other =...