daoadresseservice/util/DeduplicateHelper.java

package dk.daoas.daoadresseservice.util;

import java.util.HashMap;

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;
        }
        
}
1	package dk.daoas.daoadresseservice.util;
2
3	import java.util.HashMap;
4
5	public class DeduplicateHelper<T> {
6	private HashMap<T,T> cache = new HashMap<T,T>();
7
8	public T getInstance(T newT) {
9	if (newT == null) {
10	return null;
11	}
12
13	T cachedT = cache.get(newT);
14	if ( cachedT == null ) {
15	cachedT = newT;
16	cache.put(newT, newT);
17	}
18	return cachedT;
19	}
20
21	}