/* Copyright 2004, 2005, 2006 Acegi Technology Pty Limited

  *

  * Licensed under the Apache License, Version 2.0 (the "License");

  * you may not use this file except in compliance with the License.

  * You may obtain a copy of the License at

  *

  *     http://www.apache.org/licenses/LICENSE-2.0

  *

  * Unless required by applicable law or agreed to in writing, software

  * distributed under the License is distributed on an "AS IS" BASIS,

  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  * See the License for the specific language governing permissions and

  * limitations under the License.

  */

 package org.acegisecurity.acl.basic.cache;

 import org.acegisecurity.acl.basic.AclObjectIdentity;

 import org.acegisecurity.acl.basic.BasicAclEntry;

 import org.acegisecurity.acl.basic.BasicAclEntryCache;

 /**

  * Does not perform any caching.<P><B>Do not use in production settings</B>, as ACL queries are likely to be

  * extensive.</p>

  *

  * @author Ben Alex

  * @version $Id: NullAclEntryCache.java 1496 2006-05-23 13:38:33Z benalex $

  */

 public class NullAclEntryCache implements BasicAclEntryCache {

     //~ Methods ========================================================================================================

     /**

      * As nothing ever stored in the cache, will always return <code>null</code>.

      *

      * @param aclObjectIdentity ignored

      *

      * @return always <code>null</code>

      */

     public BasicAclEntry[] getEntriesFromCache(AclObjectIdentity aclObjectIdentity) {

         return null;

     }

     /**

      * Meets method signature but doesn't store in any cache.

      *

      * @param basicAclEntry ignored

      */

     public void putEntriesInCache(BasicAclEntry[] basicAclEntry) {}

     /**

      * Meets method signature but doesn't remove from cache.

      *

      * @param aclObjectIdentity ignored

      */

     public void removeEntriesFromCache(AclObjectIdentity aclObjectIdentity) {}

 }