daoadresseservice/util/DeduplicateHelper.java

package dk.daoas.daoadresseservice.util;

import java.util.HashMap;

public class DeduplicateHelper<T> {
        private HashMap<T,T> cache;
        
        public DeduplicateHelper() {
                cache = new HashMap<T,T>();
        }
        
        public DeduplicateHelper(int initialCapacity) {
                cache = new HashMap<T,T>(initialCapacity);
        }
        
        
        
        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;
        }
        
        public int size() {
                return cache.size();
        }
        
}
1	torben	2316	package dk.daoas.daoadresseservice.util;
2
3			import java.util.HashMap;
4
5			public class DeduplicateHelper<T> {
6	torben	2805	private HashMap<T,T> cache;
7	torben	2316
8	torben	2805	public DeduplicateHelper() {
9			cache = new HashMap<T,T>();
10			}
11
12			public DeduplicateHelper(int initialCapacity) {
13			cache = new HashMap<T,T>(initialCapacity);
14			}
15
16
17
18	torben	2316	public T getInstance(T newT) {
19			if (newT == null) {
20			return null;
21			}
22
23			T cachedT = cache.get(newT);
24			if ( cachedT == null ) {
25			cachedT = newT;
26			cache.put(newT, newT);
27			}
28			return cachedT;
29			}
30
31	torben	2805	public int size() {
32			return cache.size();
33			}
34
35	torben	2316	}