1   /**
2    * Copyright (c) 2000-2010 Liferay, Inc. All rights reserved.
3    *
4    * This library is free software; you can redistribute it and/or modify it under
5    * the terms of the GNU Lesser General Public License as published by the Free
6    * Software Foundation; either version 2.1 of the License, or (at your option)
7    * any later version.
8    *
9    * This library is distributed in the hope that it will be useful, but WITHOUT
10   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
11   * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
12   * details.
13   */
14  
15  package com.liferay.portal.kernel.dao.orm;
16  
17  /**
18   * <a href="ProjectionFactory.java.html"><b><i>View Source</i></b></a>
19   *
20   * @author Brian Wing Shun Chan
21   */
22  public interface ProjectionFactory {
23  
24      public Projection alias(Projection projection, String alias);
25  
26      public Projection avg(String propertyName);
27  
28      public Projection count(String propertyName);
29  
30      public Projection countDistinct(String propertyName);
31  
32      public Projection distinct(Projection projection);
33  
34      public Projection groupProperty(String propertyName);
35  
36      public Projection max(String propertyName);
37  
38      public Projection min(String propertyName);
39  
40      public ProjectionList projectionList();
41  
42      public Projection property(String propertyName);
43  
44      public Projection rowCount();
45  
46      public Projection sum(String propertyName);
47  
48  }