package dk.daoas.naermestepshop;

import java.util.HashMap;

/* Kopieret fra dk.daoas.daoadresseservice */

public class DeduplicateHelper<T> {
	private HashMap<T,T> cache = new HashMap<T,T>();
	
	public T getInstance(T newT) {
		if (newT == null) {
			return null;
		}
		
		T cachedT = cache.get(newT);
		if ( cachedT == null ) {
			cachedT = newT;
			cache.put(newT, newT);				
		}
		return cachedT;
	}
	
}