content: package org.apache.archiva.repository.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.
   */
  
  import org.apache.archiva.repository.ManagedRepositoryContent;
  
  /**
   *
   * Basic interface for content layouts.
   * A content layout provides specific content item instances for the content structure like Namespace,
   * Project, Version and their relationships.
   *
   * @author Martin Stockhammer <martin_s@apache.org>
   */
  public interface ManagedRepositoryContentLayout
  {
  
      /**
       * Returns the repository content, that this layout is attached to.
       * @return the content instance
       */
      ManagedRepositoryContent getGenericContent();
  
      /**
       * Adapts a generic content item to a specific implementation class.
       *
       * @param clazz the target implementation
       * @param item the content item
       * @param <T> the target class
       * @return the adapted instance
       * @throws LayoutException if the conversion is not possible
       */
      <T extends ContentItem> T adaptItem( Class<T> clazz, ContentItem item ) throws LayoutException;
  
  }
  