CacheEngine.java
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- /*
- * Copyright (c) JForum Team
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms,
- * with or without modification, are permitted provided
- * that the following conditions are met:
- *
- * 1) Redistributions of source code must retain the above
- * copyright notice, this list of conditions and the
- * following disclaimer.
- * 2) Redistributions in binary form must reproduce the
- * above copyright notice, this list of conditions and
- * the following disclaimer in the documentation and/or
- * other materials provided with the distribution.
- * 3) Neither the name of "Rafael Steil" nor
- * the names of its contributors may be used to endorse
- * or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
- * HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
- * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
- * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
- *
- * Created on Jan 13, 2005 5:58:36 PM
- * The JForum Project
- * http://www.jforum.net
- */
- package net.jforum.cache;
- import java.util.Collection;
- /**
- * @author Rafael Steil
- * @version $Id: CacheEngine.java,v 1.11 2006/08/20 22:47:56 rafaelsteil Exp $
- */
- public interface CacheEngine
- {
- public static final String DUMMY_FQN = "";
- public static final String NOTIFICATION = "notification";
-
- /**
- * Inits the cache engine.
- */
- public void init();
-
- /**
- * Stops the cache engine
- */
- public void stop();
-
- /**
- * Adds a new object to the cache.
- * The fqn will be set as the value of {@link #DUMMY_FQN}
- *
- * @param key The key to associate with the object.
- * @param value The object to cache
- */
- public void add(String key, Object value);
-
- /**
- *
- * Adds a new object to the cache.
- *
- * @param fqn The fully qualified name of the cache.
- * @param key The key to associate with the object
- * @param value The object to cache
- */
- public void add(String fqn, String key, Object value);
-
- /**
- * Gets some object from the cache.
- *
- * @param fqn The fully qualified name associated with the key
- * @param key The key to get
- * @return The cached object, or <code>null</code> if no entry was found
- */
- public Object get(String fqn, String key);
-
- /**
- * Gets some object from the cache.
- *
- * @param fqn The fqn tree to get
- * @return The cached object, or <code>null</code> if no entry was found
- */
- public Object get(String fqn);
-
- /**
- * Gets all values from some given FQN.
- *
- * @param fqn String
- * @return Collection
- */
- public Collection getValues(String fqn);
-
- /**
- * Removes an entry from the cache.
- *
- * @param fqn The fully qualified name associated with the key
- * @param key The key to remove
- */
- public void remove(String fqn, String key);
-
- /**
- * Removes a complete note from the cache
- * @param fqn The fqn to remove
- */
- public void remove(String fqn);
- }