/* 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.BasicAclEntry;

 import org.springframework.util.Assert;

 import java.io.Serializable;

 /**

  * Used by {@link EhCacheBasedAclEntryCache} to store the array of <code>BasicAclEntry</code>s in the cache.<P>This

  * is necessary because caches store a single object per key, not an array.</p>

  *  <P>This class uses value object semantics. ie: construction-based initialisation without any setters for the

  * properties.</p>

  *

  * @author Ben Alex

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

  */

 public class BasicAclEntryHolder implements Serializable {

     //~ Instance fields ================================================================================================

     private BasicAclEntry[] basicAclEntries;

     //~ Constructors ===================================================================================================

 /**

      * Constructs the <code>BasicAclEntryHolder</code>.

      *

      * @param aclEntries to cache (any <code>null</code>s will cause an

      *        exception, which should not be a problem as the contract for

      *        <code>BasicAclEntryCache</code> allows exceptions if

      *        <code>null</code>s are presented)

      *

      * @throws IllegalArgumentException if a <code>null</code> exists anywhere

      *         in the <code>aclEntries</code> or if a <code>null</code> is

      *         passed to the constructor

      */

     public BasicAclEntryHolder(BasicAclEntry[] aclEntries) {

         Assert.notNull(aclEntries, "aclEntries cannot be null");

         for (int i = 0; i < aclEntries.length; i++) {

             Assert.notNull(aclEntries[i], "aclEntries cannot be null");

         }

         this.basicAclEntries = aclEntries;

     }

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

     public BasicAclEntry[] getBasicAclEntries() {

         return basicAclEntries;

     }

 }