001 package railo.commons.io.cache; 002 003 import java.io.Serializable; 004 005 /** 006 * Ac CacheEventListener is registred to a cache implementing the interface CacheEvent, a CacheEventListener can listen to certain event happening in a cache 007 */ 008 public interface CacheEventListener extends Serializable { 009 010 011 /** 012 * this method is invoked before a Cache Entry is removed from Cache 013 * @param entry entry that will be removed from Cache 014 */ 015 public void onRemove(CacheEntry entry); 016 017 /** 018 * this method is invoked before a new Entry is putted to a cache (update and insert) 019 */ 020 public void onPut(CacheEntry entry); 021 022 /** 023 * this method is invoked before a entry expires (lifetime and idletime) 024 */ 025 public void onExpires(CacheEntry entry); 026 027 028 public CacheEventListener duplicate(); 029 }