CacheGroup (cayenne-cache-invalidation: Cayenne Cache Invalidation 4.2.1 API)

```
@Target(TYPE)
@Retention(RUNTIME)
@Documented
@Inherited
public @interface CacheGroup
```
Annotation for defining cache group in case different cache types are targeted.

Since:

4.0

See Also:

CacheGroups, CacheGroupsHandler

- Required Element Summary
  
  Required Elements
  Modifier and Type Required Element Description
  
  String value
- Optional Element Summary
  
  Optional Elements
  Modifier and Type Optional Element Description
  
  Class<?> keyType
  Defines key type of the cache.
  
  Class<?> valueType
  Defines value type of the cache.

- Element Detail
  - value
```
String value
```
    Returns:
    
    cache group name
- - keyType
```
Class<?> keyType
```
    Defines key type of the cache. Could be used for managing external caches that is strictly typed (e.g. JCache).
    
    Default:
    
    java.lang.Void.class
- - valueType
```
Class<?> valueType
```
    Defines value type of the cache. Could be used for managing external caches that is strictly typed (e.g. JCache).
    
    Default:
    
    java.lang.Void.class