| 1 | package spiffy.core.util; |
| 2 | |
| 3 | import java.util.HashMap; |
| 4 | |
| 5 | /** |
| 6 | * Shortcut way to build hashmaps. It's great for making concise tests. |
| 7 | * <p> |
| 8 | * Instead of |
| 9 | * |
| 10 | * <pre> |
| 11 | * HashMap<String, Integer> map = new HashMap<String, Integer>(); |
| 12 | * map.put("one", 1); |
| 13 | * map.put("two", 2); |
| 14 | * ... |
| 15 | * </pre> |
| 16 | * |
| 17 | * you can now chain the inserts and use the more familiar add(). |
| 18 | * |
| 19 | * <pre> |
| 20 | * HashMap<String, Integer> map = new HashMapBuilder<String, Integer>().add("one", 1).add("two", 2).build(); |
| 21 | * </pre> |
| 22 | * |
| 23 | * @author Kasper B. Graversen, (c) 2007-2008 |
| 24 | */ |
| 25 | public class HashMapBuilder<K, V> { |
| 26 | HashMap<K, V> map; |
| 27 | |
| 28 | public HashMapBuilder() { |
| 29 | map = new HashMap<K, V>(); |
| 30 | } |
| 31 | |
| 32 | /** |
| 33 | * add a key-value pair |
| 34 | */ |
| 35 | public HashMapBuilder<K, V> add(final K key, final V value) { |
| 36 | map.put(key, value); |
| 37 | return this; |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * build the hashmap. |
| 42 | */ |
| 43 | public HashMap<K, V> build() { |
| 44 | return map; |
| 45 | } |
| 46 | } |