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.aries.samples.blog.api;
  
  import java.text.ParseException;
  import java.util.List;
  
  import org.apache.aries.samples.blog.api.persistence.Entry;
  
  
  
  public interface BlogEntryManager
  {
    /**
     * Create a blog posting.
     * @param email the author's email
     * @param title the title of the entry
     * @param blogText the text of the entry
     * @param tags tags associated with the blog entry
     */
    public void createBlogPost(String email, String title, String blogText, List<String> tags);
    
    /**
     * Find a specific blog entry by title.
     * @param title the title to search for
     * @return the blog entry
     */
    public Entry findBlogEntryByTitle(String title);
    
    /**
     * Retrieve all blog entries.
     * @return a List<BlogEntry> of all blog entries
     */
    public List<? extends BlogEntry> getAllBlogEntries();
    
    /**
     * Retrieve all blog entries for a specific author.
     * @param emailAddress the email address of the author in question
     * @return a List<BlogEntry>
     */
    public List<? extends BlogEntry> getBlogsForAuthor(String emailAddress);
    
    /**
     * Retrieve all blog entries created between a specified date range.
     * @param startDate the start date
     * @param endDate the end date
     * @return a List<BlogEntry>
     * @throws ParseException
     */
    public List<?extends BlogEntry> getBlogEntriesModifiedBetween(String startDate, String endDate) throws ParseException;
  
    /**
     * Get N posts from the database starting at post number X
     * 
     * @param firstPostIndex the first post to retrieve
     * @param noOfPosts the number of posts to retrieve in total
     * @return a List<BlogEntry> of N posts
     */
    public List<? extends BlogEntry> getBlogEntries(int firstPostIndex, int noOfPosts);
    
    /**
     * Get the total number of blog entries in the database
     * @return the int number of entries
     */
    public int getNoOfPosts();
    
    /**
     * Remove a specific blog entry.
     * @param a the author of the blog entry
     * @param title the title of the blog entry
     * @param publishDate the publication date of the blog entry
     * @throws ParseException
     */
    public void removeBlogEntry(BlogAuthor author, String title, String publishDate) throws ParseException;
    
    /**
     * Update a blog entry.
     * @param originalEntry the original blog entry
     * @param a the author of the blog entry
     * @param title the title of the blog entry
     * @param publishDate the publication date of the blog entry
     * @param blogText the text content of the blog entry
     * @param tags any assocaited tags for the blog entry
     * @throws ParseException
     */
    public void updateBlogEntry(BlogEntry originalEntry, BlogAuthor a, String title, String publishDate, String blogText, List<String> tags) throws ParseException;
  
    
    /**
     * Get the specified blog posting.
     * @param id the id of the blog posting
     * @return the blog post
     */
    public BlogEntry getBlogPost(long id);
  }
  