content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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.apache.chemistry.opencmis.inmemory.storedobj.api;
  
  import java.util.List;
  
  /**
   * A folder is a concrete object (meaning it can be stored) and has Each folder
   * is contained in a parent folder. The parent folder for the special root
   * folder is null.
   */
  
  public interface Folder extends Fileable {
  
      /**
       * get parent if of this folder.
       * 
       * @return parent id of this folder
       */
      String getParentId();
  
      /**
       * set the parent id of a folder.
       * 
       * @param parentId
       *            parent id of this folder
       */
      void setParentId(String parentId);
  
      /**
       * return a list of allowed types of children in this folder.
       * 
       * @return
       *      list of allowed object child type ids
       */
      List<String> getAllowedChildObjectTypeIds();
  
  }
  