Package org.castor.cache.hashbelt.reaper
Class RefreshingReaper
- java.lang.Object
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- org.castor.cache.hashbelt.reaper.AbstractReaper
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- org.castor.cache.hashbelt.reaper.RefreshingReaper
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- 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
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Constructor Summary
Constructors Constructor Description RefreshingReaper()
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description 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 org.castor.cache.hashbelt.reaper.AbstractReaper
getCache, setCache
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Method Detail
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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.
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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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