Cache (Aspectran API Reference (7.0.7))

Type Parameters:

K - the type of keys

V - the type of mapped values

All Known Implementing Classes:

ConcurrentLruCache, ConcurrentReferenceCache
```
public interface Cache<K,V>
```
A Map-like data structure that stores key-value pairs and provides temporary access to it.

Since:

6.6.7

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`clear()`	Removes all of the elements from this cache.
`V`	`get(K key)`	Gets an entry from the cache.
`boolean`	`isEmpty()`	Returns `true` if this cache contains no key-value mappings.
`java.util.Set<K>`	`keySet()`	Returns a `Set` view of the keys contained in this cache.
`void`	`remove(K key)`	Removes the specified element from this cache if it is present.
`int`	`size()`	Returns the number of elements in this cache.

- Method Detail
  - get
```
V get(K key)
```
    Gets an entry from the cache.
    
    Parameters:
    
    key - the key whose associated value is to be returned
    
    Returns:
    
    the element, or null, if it does not exist
  - remove
```
void remove(K key)
```
    Removes the specified element from this cache if it is present.
    
    Parameters:
    
    key - key with which the specified value is to be associated
  - clear
```
void clear()
```
    Removes all of the elements from this cache.
  - keySet
```
java.util.Set<K> keySet()
```
    Returns a Set view of the keys contained in this cache.
    
    Returns:
    
    the set view
  - size
```
int size()
```
    Returns the number of elements in this cache.
    
    Returns:
    
    the number of elements in this cache
  - isEmpty
```
boolean isEmpty()
```
    Returns true if this cache contains no key-value mappings.
    
    Returns:
    
    true if this cache contains no key-value mappings