package org.apache.fulcrum.security.torque.basic;
   /*
    * 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 java.sql.Connection;
  import java.util.List;
  import java.util.Set;
  
  import org.apache.fulcrum.security.entity.User;
  import org.apache.fulcrum.security.model.basic.entity.BasicGroup;
  import org.apache.fulcrum.security.torque.om.TorqueBasicGroupPeer;
  import org.apache.fulcrum.security.torque.om.TorqueBasicUserGroup;
  import org.apache.fulcrum.security.torque.om.TorqueBasicUserGroupPeer;
  import org.apache.fulcrum.security.torque.security.TorqueAbstractSecurityEntity;
  import org.apache.fulcrum.security.util.DataBackendException;
  import org.apache.fulcrum.security.util.UserSet;
  import org.apache.torque.TorqueException;
  import org.apache.torque.criteria.Criteria;
  import org.apache.torque.om.SimpleKey;
  
  /**
   * This abstract class provides the SecurityInterface to the managers.
   *
   * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a>
   * @version $Id:$
   */
  public abstract class TorqueAbstractBasicGroup extends TorqueAbstractSecurityEntity
      implements BasicGroup
  {
      /** Serial version */
  	private static final long serialVersionUID = -3639383219058996135L;
  
  	/** a cache of user objects */
      private Set<User> userSet = null;
  
      /**
       * Forward reference to generated code
       *
       * Get a list of association objects, pre-populated with their TorqueBasicUser
       * objects.
       *
       * @param criteria Criteria to define the selection of records
       * @param con a database connection
       * @throws TorqueException  if any database error occurs
       *
       * @return a list of User/Group relations
       */
      protected List<TorqueBasicUserGroup> getTorqueBasicUserGroupsJoinTorqueBasicUser(Criteria criteria, Connection con)
          throws TorqueException
      {
          criteria.and(TorqueBasicUserGroupPeer.GROUP_ID, getEntityId() );
          return TorqueBasicUserGroupPeer.doSelectJoinTorqueBasicUser(criteria, con);
      }
  
      /**
       * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#addUser(org.apache.fulcrum.security.entity.User)
       */
      public void addUser(User user)
      {
          getUsers().add(user);
      }
  
      /**
       * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#getUsers()
       */
      public UserSet getUsers()
      {
          if (userSet == null)
          {
              userSet = new UserSet();
          }
          else if(!(userSet instanceof UserSet))
          {
              userSet = new UserSet(userSet);
          }
  
          return (UserSet)userSet;
      }
  
      /**
       * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#getUsersAsSet()
       */
      @SuppressWarnings("unchecked")
  	public <T extends User> Set<T> getUsersAsSet()
     {
         return (Set<T>)userSet;
     }
 
     /**
      * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#removeUser(org.apache.fulcrum.security.entity.User)
      */
     public void removeUser(User user)
     {
         getUsers().remove(user);
     }
 
     /**
      * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#setUsers(org.apache.fulcrum.security.util.UserSet)
      */
     public void setUsers(UserSet userSet)
     {
         if(userSet != null)
         {
             this.userSet = userSet;
         }
         else
         {
             this.userSet = new UserSet();
         }
     }
 
     /**
      * @see org.apache.fulcrum.security.model.basic.entity.BasicGroup#setUsersAsSet(java.util.Set)
      */
     public <T extends User> void setUsersAsSet(Set<T> users)
     {
         setUsers(new UserSet(users));
     }
     
     @Override
     public void retrieveAttachedObjects( Connection con )
         throws DataBackendException
     {
         retrieveAttachedObjects( con, false );
     }
 
     /**
      * Retrieve attached objects such as users, permissions,....
      */
     @Override
     public void retrieveAttachedObjects( Connection con, Boolean lazy )
         throws DataBackendException
     {
         this.userSet = new UserSet();
 
         try {
             List<TorqueBasicUserGroup> usergroups =
             	getTorqueBasicUserGroupsJoinTorqueBasicUser(new Criteria(), con);
     
             for (TorqueBasicUserGroup tbug : usergroups)
             {
                 userSet.add(tbug.getTorqueBasicUser());
             }
         } catch (TorqueException e ) {
             throw new DataBackendException( e.getMessage(),e );
         }
     }
 
     /**
      * Update this instance to the database with all dependent objects
      *
      * @param con A database connection
      */
     public void update(Connection con) throws TorqueException
     {
         if (userSet != null)
         {
             Criteria criteria = new Criteria();
 
             /* remove old entries */
             criteria.where(TorqueBasicUserGroupPeer.GROUP_ID, getEntityId());
             TorqueBasicUserGroupPeer.doDelete(criteria, con);
 
             for (User u : userSet)
             {
                 TorqueBasicUserGroupue/om/TorqueBasicUserGroup.html#TorqueBasicUserGroup">TorqueBasicUserGroup ug = new TorqueBasicUserGroup();
                 ug.setUserId((Integer)u.getId());
                 ug.setGroupId(getEntityId());
                 ug.save(con);
             }
         }
 
         try
         {
             save(con);
         }
         catch (Exception e)
         {
             throw new TorqueException(e);
         }
     }
 
     /**
      * Get the name of the connection pool associated to this object
      *
      * @return the logical Torque database name
      */
     public String getDatabaseName()
     {
         return TorqueBasicGroupPeer.DATABASE_NAME;
     }
 
     /**
      * @see org.apache.fulcrum.security.torque.security.TorqueAbstractSecurityEntity#delete()
      */
     public void delete() throws TorqueException
     {
         TorqueBasicGroupPeer.doDelete(SimpleKey.keyFor(getEntityId()));
     }
 }