Cache (ActiveMQ 5.17.0 API)

All Known Implementing Classes:

CacheFilter, MapCache, UsageManagerCacheFilter
```
public interface Cache
```
Defines the interface used to cache messages.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`close()`	Lets a cache know it will not be used any further and that it can release acquired resources
`Object`	`get(Object key)`	Gets an object that was previously `put` into this object.
`Object`	`put(Object key, Object value)`	Puts an object into the cache.
`Object`	`remove(Object key)`	Removes an object from the cache.
`int`	`size()`	How big is the cache right now?

- Method Detail
  - get
```
Object get(Object key)
```
    Gets an object that was previously put into this object.
    
    Parameters:
    
    key -
    
    Returns:
    
    null if the object was not previously put or if the object has expired out of the cache.
  - put
```
Object put(Object key,
           Object value)
```
    Puts an object into the cache.
    
    Parameters:
    
    key -
    
    value -
  - remove
```
Object remove(Object key)
```
    Removes an object from the cache.
    
    Parameters:
    
    key -
    
    Returns:
    
    the object associated with the key if it was still in the cache.
  - close
```
void close()
```
    Lets a cache know it will not be used any further and that it can release acquired resources
  - size
```
int size()
```
    How big is the cache right now?
    
    Returns:
    
    the size.