org.castor.cache.hashbelt.reaper
Class RefreshingReaper
java.lang.Object
org.castor.cache.hashbelt.reaper.AbstractReaper
org.castor.cache.hashbelt.reaper.RefreshingReaper
- All Implemented Interfaces:
- Reaper
public abstract class RefreshingReaper
- extends AbstractReaper
Calls a refresh method on each object in the container; it reinserts any
returned object to the front of the expiration system. Useful for any object
that needs to be periodically refreshed from source; you are free to return
the same object that was called or to replace it with a refreshed version of
that object.
Note that you must supply the implementation of the refresh method.
- Since:
- 1.0
- Version:
- $Revision: 8102 $ $Date: 2006-04-25 16:09:10 -0600 (Tue, 25 Apr 2006) $
- Author:
- Gregory Block
Method Summary |
void |
handleExpiredContainer(Container expiredContainer)
Methode called with a container that has expired before the container is garbage
collected. |
protected abstract java.lang.Object |
refresh(java.lang.Object objectToBeRefreshed)
Function called to attempt to refresh the object. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
RefreshingReaper
public RefreshingReaper()
handleExpiredContainer
public final void handleExpiredContainer(Container expiredContainer)
- Methode called with a container that has expired before the container is garbage
collected.
- Parameters:
expiredContainer
- The container that has expired.
refresh
protected abstract java.lang.Object refresh(java.lang.Object objectToBeRefreshed)
- Function called to attempt to refresh the object. If refresh was successful,
return the refreshed object; if not, return null.
- Parameters:
objectToBeRefreshed
- The object to be refreshed.
- Returns:
- The refreshed object, or null if the object could not be refreshed.
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