| 2707 |
|
} |
| 2708 |
|
|
| 2709 |
|
/** |
| 2710 |
< |
* If the specified key is not already associated with a value (or |
| 2711 |
< |
* is mapped to {@code null}), attempts to compute its value using |
| 2712 |
< |
* the given mapping function and enters it into this map unless |
| 2713 |
< |
* {@code null}. The entire method invocation is performed |
| 2714 |
< |
* atomically, so the function is applied at most once per key. |
| 2715 |
< |
* Some attempted update operations on this map by other threads |
| 2716 |
< |
* may be blocked while computation is in progress, so the |
| 2717 |
< |
* computation should be short and simple, and must not attempt to |
| 2718 |
< |
* update any other mappings of this Map. |
| 2710 |
> |
* If the specified key is not already associated with a value, |
| 2711 |
> |
* attempts to compute its value using the given mapping function |
| 2712 |
> |
* and enters it into this map unless {@code null}. The entire |
| 2713 |
> |
* method invocation is performed atomically, so the function is |
| 2714 |
> |
* applied at most once per key. Some attempted update operations |
| 2715 |
> |
* on this map by other threads may be blocked while computation |
| 2716 |
> |
* is in progress, so the computation should be short and simple, |
| 2717 |
> |
* and must not attempt to update any other mappings of this map. |
| 2718 |
|
* |
| 2719 |
|
* @param key key with which the specified value is to be associated |
| 2720 |
|
* @param mappingFunction the function to compute a value |
| 2733 |
|
} |
| 2734 |
|
|
| 2735 |
|
/** |
| 2736 |
< |
* If the value for the specified key is present and non-null, |
| 2737 |
< |
* attempts to compute a new mapping given the key and its current |
| 2738 |
< |
* mapped value. The entire method invocation is performed |
| 2739 |
< |
* atomically. Some attempted update operations on this map by |
| 2740 |
< |
* other threads may be blocked while computation is in progress, |
| 2741 |
< |
* so the computation should be short and simple, and must not |
| 2742 |
< |
* attempt to update any other mappings of this Map. |
| 2736 |
> |
* If the value for the specified key is present, attempts to |
| 2737 |
> |
* compute a new mapping given the key and its current mapped |
| 2738 |
> |
* value. The entire method invocation is performed atomically. |
| 2739 |
> |
* Some attempted update operations on this map by other threads |
| 2740 |
> |
* may be blocked while computation is in progress, so the |
| 2741 |
> |
* computation should be short and simple, and must not attempt to |
| 2742 |
> |
* update any other mappings of this map. |
| 2743 |
|
* |
| 2744 |
|
* @param key key with which a value may be associated |
| 2745 |
|
* @param remappingFunction the function to compute a value |
