ComputingCache (Weld Implementation (Core) 4.0.2.Final API)

```
public interface ComputingCache<K,V>
```
A simple abstraction for computing cache. Implementations are not required to support recursive computations. A cache client must be aware that such computations may result in livelocks, inifinite loops and other undesired situations.

Author:

Martin Kouba

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`clear()`	Remove all cache entries.
`void`	`forEachValue(Consumer<? super V> consumer)`	Performs the given action for each cached value.
`Iterable<V>`	`getAllPresentValues()`
`<T> T`	`getCastValue(Object key)`
`V`	`getValue(K key)`
`V`	`getValueIfPresent(K key)`
`void`	`invalidate(Object key)`	Invalidate the entry with the given key.
`long`	`size()`

- Method Detail
  - getValue
```
V getValue(K key)
```
    Parameters:
    
    key -
    
    Returns:
    
    the cache value
  - getCastValue
```
<T> T getCastValue(Object key)
```
    Parameters:
    
    key -
    
    Returns:
    
    the cache value cast to the required type
  - getValueIfPresent
```
V getValueIfPresent(K key)
```
    Parameters:
    
    key -
    
    Returns:
    
    the cache value if present (i.e. no computation is performed)
  - size
```
long size()
```
    Returns:
    
    the size of the cache
  - clear
```
void clear()
```
    Remove all cache entries.
  - invalidate
```
void invalidate(Object key)
```
    Invalidate the entry with the given key. No-op if no such entry exists.
    
    Parameters:
    
    key -
  - getAllPresentValues
```
Iterable<V> getAllPresentValues()
```
    Returns:
    
    an immutable map of entries
  - forEachValue
```
void forEachValue(Consumer<? super V> consumer)
```
    Performs the given action for each cached value.
    
    Parameters:
    
    consumer - the given action