1 <?php

     2 /*

     3  *  $Id$

     4  *

     5  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

     6  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

     7  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

     8  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

     9  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    10  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    11  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    12  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    13  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    14  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    15  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    16  *

    17  * This software consists of voluntary contributions made by many individuals

    18  * and is licensed under the LGPL. For more information, see

    19  * <http://www.doctrine-project.org>.

    20  */

    21  

    22 namespace Doctrine\ORM\Query\AST;

    23 

    24 /**

    25  * EmptyCollectionComparisonExpression ::= CollectionValuedPathExpression "IS" ["NOT"] "EMPTY"

    26  *

    27  * @license http://www.opensource.org/licenses/lgpl-license.php LGPL

    28  * @link    www.doctrine-project.org

    29  * @since   2.0

    30  * @version $Revision: 3938 $

    31  * @author  Guilherme Blanco <guilhermeblanco@hotmail.com>

    32  * @author  Jonathan Wage <jonwage@gmail.com>

    33  * @author  Roman Borschel <roman@code-factory.org>

    34  */

    35 class EmptyCollectionComparisonExpression extends Node

    36 {

    37     public $expression;

    38     public $not;

    39 

    40     public function __construct($expression)

    41     {

    42         $this->expression = $expression;

    43     }

    44 

    45     public function dispatch($sqlWalker)

    46     {

    47         return $sqlWalker->walkEmptyCollectionComparisonExpression($this);

    48     }

    49 }

    50