UsageManagerCacheFilter (ActiveMQ :: Broker 5.17.2 API)

java.lang.Object
- org.apache.activemq.memory.CacheFilter
- - org.apache.activemq.memory.UsageManagerCacheFilter

All Implemented Interfaces:

Cache
```
public class UsageManagerCacheFilter
extends CacheFilter
```
Simple CacheFilter that increases/decreases usage on a UsageManager as objects are added/removed from the Cache.

Field Summary
- Fields inherited from class org.apache.activemq.memory.CacheFilter
  next

Constructor Summary

Constructors
Constructor Description

UsageManagerCacheFilter(Cache next, org.apache.activemq.usage.MemoryUsage um)

Method Summary

All Methods Instance Methods Concrete 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
`protected long`	`getUsageOfAddedObject(Object value)`
`protected long`	`getUsageOfRemovedObject(Object value)`
`Object`	`put(Object key, Object value)`	Puts an object into the cache.
`Object`	`remove(Object key)`	Removes an object from the cache.

Methods inherited from class org.apache.activemq.memory.CacheFilter
get, size

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - UsageManagerCacheFilter
```
public UsageManagerCacheFilter(Cache next,
                               org.apache.activemq.usage.MemoryUsage um)
```
- Method Detail
  - put
```
public Object put(Object key,
                  Object value)
```
    Description copied from interface: Cache
    
    Puts an object into the cache.
    
    Specified by:
    
    put in interface Cache
    
    Overrides:
    
    put in class CacheFilter
  - remove
```
public Object remove(Object key)
```
    Description copied from interface: Cache
    
    Removes an object from the cache.
    
    Specified by:
    
    remove in interface Cache
    
    Overrides:
    
    remove in class CacheFilter
    
    Returns:
    
    the object associated with the key if it was still in the cache.
  - getUsageOfAddedObject
```
protected long getUsageOfAddedObject(Object value)
```
  - getUsageOfRemovedObject
```
protected long getUsageOfRemovedObject(Object value)
```
  - close
```
public void close()
```
    Description copied from interface: Cache
    
    Lets a cache know it will not be used any further and that it can release acquired resources
    
    Specified by:
    
    close in interface Cache
    
    Overrides:
    
    close in class CacheFilter