ehcache-core 2.10.9.2 · net.sf.ehcache.constructs.blocking.UpdatingCacheEntryFactory

A CacheEntryFactory with one additional method, updateEntryValue((Serializable key, Serializable value) which allows the cache entry to updated rather than replaced. This has the following potential benefits:

Where only part of the value needs to be updated, it is quicker
Memory use can be smoothed, which is useful for particularly large objects which are being refreshed contrinuously

Method Summary

Modifier and Type	Method and Description
public void	updateEntryValue(Object the cache Key key, Object a value copied from the value that belonged to the Element in the cache. Value must be mutable value) Perform an incremental update of data within a CacheEntry.

Inherited from net.sf.ehcache.constructs.blocking.CacheEntryFactory:: createEntry

Method Detail

updateEntryValue	back to summary
public void updateEntryValue(Object key, Object value) throws Exception Perform an incremental update of data within a CacheEntry. Based on identification of dirty values within a CacheEntry Insert Update or Delete those entries based on the existing value. This method does not return a modified value, because it modifies the value passed into it, relying on the pass by reference feature of Java. Implementations of this method must be thread safe. Parameters key:Object the cache Key value:Object a value copied from the value that belonged to the Element in the cache. Value must be mutable

updateEntryValue

back to summary

public void updateEntryValue(Object key, Object value) throws Exception

Perform an incremental update of data within a CacheEntry. Based on identification of dirty values within a CacheEntry Insert Update or Delete those entries based on the existing value.

This method does not return a modified value, because it modifies the value passed into it, relying on the pass by reference feature of Java. Implementations of this method must be thread safe.

Parameters

key:Object: the cache Key
value:Object: a value copied from the value that belonged to the Element in the cache. Value must be mutable

public Interface UpdatingCacheEntryFactory

Method Summary

Method Detail