Class UsageManagerCacheFilter

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.

  • Constructor Details

    • UsageManagerCacheFilter

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

  • Method Details

    • 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
      Parameters:
      key -
      value -

    • 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
      Parameters:
      key -
      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