DSHandler¶

public abstract class DSHandler extends SystemComponent ¶

The class DSHandler provides abstract interface for getting the actual DAO from the implementation class. Creation Date: 3/10/2006. V1.0.2 - support DVO Caching

Author:	Twinsen Tsang

Fields¶

cacher¶

protected DVOCacher cacher¶: The DVO cache.

dao¶

protected DAO dao¶: The singleton dao.

isCacheEnable¶

protected boolean isCacheEnable¶: The flag indicating whether the cache is enabled ?.

Methods¶

clearCache¶

public abstract void clearCache(DVO dvo)¶: Clear the cache ONLY by a particular dvo object;

getDAOInstance¶

public DAO getDAOInstance()¶

The public interface used for other class to access DAO.

Returns:	Get the DAO singleton instance.

getInstance¶

protected abstract DAO getInstance()¶: Create / Get the instance of DAO.

init¶

protected void init()¶

Invoked for initialization. There is following parameters that can be set in this component:

cache-enable: The flag whether the cache should be enabled. [Boolean]
cache-size : The size of cache that can hold without LRU swapping. [Integer]