org.apache.ojb.broker.cache
Interface ObjectCacheTwoLevelImpl.CopyStrategy

All Known Implementing Classes:

ObjectCacheTwoLevelImpl.CopyStrategyImpl

Enclosing class:

ObjectCacheTwoLevelImpl

public static interface ObjectCacheTwoLevelImpl.CopyStrategy

Method Summary

Object	read(PersistenceBroker broker, Object obj) Called when an object is read from the application cache (second level cache) before the object is full materialized, see ObjectCacheTwoLevelImpl.materializeFullObject(Object).
Object	write(PersistenceBroker broker, Object obj, Object oldObject) Called before an object is written to the application cache (second level cache).

Method Detail

read

Object read(PersistenceBroker broker,
            Object obj)

Called when an object is read from the application cache (second level cache) before the object is full materialized, see ObjectCacheTwoLevelImpl.materializeFullObject(Object).

Parameters:

broker - The current used PersistenceBroker instance.

obj - The object read from the application cache.

Returns:

A copy of the object.

write

Object write(PersistenceBroker broker,
             Object obj,
             Object oldObject)

Called before an object is written to the application cache (second level cache).

Parameters:

broker - The current used PersistenceBroker instance.

obj - The object to cache in application cache.

oldObject - The old cache object or null

Returns:

A copy of the object to write to application cache.