spring+ibatis+ehcache整合例子

package com.ibatis.sqlmap.engine.cache; import java.net.URL; import java.util.Properties; import net.sf.ehcache.Cache; import net.sf.ehcache.CacheManager; import net.sf.ehcache.Element; import com.ibatis.sqlmap.engine.cache.CacheController; import com.ibatis.sqlmap.engine.cache.CacheModel; public class EhCacheController implements CacheController { /** The EhCache CacheManager. */ private CacheManager cacheManager; /** * Flush a cache model. * * @param cacheModel * - the model to flush. */ public void flush(CacheModel cacheModel) { getCache(cacheModel).removeAll(); } /** * Get an object from a cache model. * * @param cacheModel * - the model. * @param key * - the key to the object. * @return the object if in the cache, or null(?). */ public Object getObject(CacheModel cacheModel, Object key) { Object result = null; Element element = getCache(cacheModel).get(key); if (element != null) { result = element.getObjectValue(); } return result; } /** * Put an object into a cache model. * * @param cacheModel * - the model to add the object to. * @param key * - the key to the object. * @param object * - the object to add. */ public void putObject(CacheModel cacheModel, Object key, Object object) { getCache(cacheModel).put(new Element(key, object)); } /** * Remove an object from a cache model. * * @param cacheModel * - the model to remove the object from. * @param key * - the key to the object. * @return the removed object(?). */ public Object removeObject(CacheModel cacheModel, Object key) { Object result = this.getObject(cacheModel, key); getCache(cacheModel).remove(key); return result; } /** * Configure a cache controller. Initialize the EH Cache Manager as a * singleton. * * @param props * - the properties object continaing configuration information. */ public void setProperties(Properties props) { URL url = getClass().getResource(props.getProperty("configFile")); cacheManager = CacheManager.create(url); } /** * Gets an EH Cache based on an iBatis cache Model. * * @param cacheModel * - the cache model. * @return the EH Cache. */ private Cache getCache(CacheModel cacheModel) { String cacheName = cacheModel.getId(); Cache cache = cacheManager.getCache(cacheName); return cache; } /** * Shut down the EH Cache CacheManager. */ public void finalize() { if (cacheManager != null) { cacheManager.shutdown(); } } }