# Projection.class.php

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    00001 <?php
    00002 /***************************************************************************
    00003  *   Copyright (C) 2006-2007 by Konstantin V. Arkhipov                     *
    00004  *                                                                         *
    00005  *   This program is free software; you can redistribute it and/or modify  *
    00006  *   it under the terms of the GNU Lesser General Public License as        *
    00007  *   published by the Free Software Foundation; either version 3 of the    *
    00008  *   License, or (at your option) any later version.                       *
    00009  *                                                                         *
    00010  ***************************************************************************/
    00011
    00017     final class Projection extends StaticFactory
    00018     {
    00022         public static function sum($property, $alias = null)
    00023         {
    00024             return new SumProjection($property, $alias);
    00025         }
    00026
    00030         public static function avg($property, $alias = null)
    00031         {
    00032             return new AverageNumberProjection($property, $alias);
    00033         }
    00034
    00038         public static function mappable(MappableObject $object, $alias = null)
    00039         {
    00040             return new MappableObjectProjection($object, $alias);
    00041         }
    00042
    00046         public static function min($property, $alias = null)
    00047         {
    00048             return new MinimalNumberProjection($property, $alias);
    00049         }
    00050
    00054         public static function max($property, $alias = null)
    00055         {
    00056             return new MaximalNumberProjection($property, $alias);
    00057         }
    00058
    00062         public static function property($property, $alias = null)
    00063         {
    00064             return new PropertyProjection($property, $alias);
    00065         }
    00066
    00070         public static function count($property = null, $alias = null)
    00071         {
    00072             return new RowCountProjection($property, $alias);
    00073         }
    00074
    00078         public static function distinctCount($property = null, $alias = null)
    00079         {
    00080             return new DistinctCountProjection($property, $alias);
    00081         }
    00082
    00086         public static function chain()
    00087         {
    00088             return new ProjectionChain();
    00089         }
    00090
    00094         public static function group($property)
    00095         {
    00096             return new GroupByPropertyProjection($property);
    00097         }
    00098
    00102         public static function groupByClass($class)
    00103         {
    00104             return new GroupByClassProjection($class);
    00105         }
    00106
    00110         public static function having(LogicalObject $logic)
    00111         {
    00112             return new HavingProjection($logic);
    00113         }
    00114
    00118         public static function clazz($className)
    00119         {
    00120             return new ClassProjection($className);
    00121         }
    00122     }
    00123 ?>