| 26 | /// |
| 27 | /// 1.2 |
| 28 | public abstract class AbstractMap<K, V> implements Map<K, V> { |
| 29 | |
| 30 | // Lazily initialized key set. |
| 31 | Set<K> keySet; |
| 32 | |
| 33 | Collection<V> valuesCollection; |
| 34 | |
| 35 | /// An immutable key-value mapping. |
| 36 | /// |
| 37 | /// Type parameter `K`: the type of key |
| 38 | /// Type parameter `V`: the type of value |
| 39 | /// |
| 40 | /// #### Since |
| 41 | /// |
| 42 | /// 1.6 |
| 43 | public static class SimpleImmutableEntry<K, V> implements Map.Entry<K, V> { |
| 44 | |
| 45 | private static final long serialVersionUID = 7138329143949025153L; |
| 46 | |
| 47 | private K key; |
| 48 | |
| 49 | private V value; |
| 50 | |
| 51 | /// Constructs a new instance by key and value. |
| 52 | /// |
| 53 | /// #### Parameters |
| 54 | /// |
| 55 | /// - `theKey`: the key |
| 56 | /// |
| 57 | /// - `theValue`: the value |
| 58 | public SimpleImmutableEntry(K theKey, V theValue) { |
| 59 | key = theKey; |
| 60 | value = theValue; |
| 61 | } |
| 62 | |
| 63 | /// Constructs a new instance by an entry |
| 64 | /// |
| 65 | /// #### Parameters |
| 66 | /// |
| 67 | /// - `entry`: the entry |
| 68 | public SimpleImmutableEntry(Map.Entry<? extends K, ? extends V> entry) { |
| 69 | key = entry.getKey(); |
| 70 | value = entry.getValue(); |
| 71 | } |
| 72 | |
| 73 | /// {@inheritDoc} |
| 74 | /// |
| 75 | /// #### See also |
| 76 | /// |
| 77 | /// - java.util.Map.Entry#getKey() |
| 78 | public K getKey() { |
| 79 | return key; |
| 80 | } |
| 81 | |
| 82 | /// {@inheritDoc} |
| 83 | /// |
| 84 | /// #### See also |
| 85 | /// |
nothing calls this directly
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