ExistsExpression.php 1.7KB

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  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. namespace Doctrine\ORM\Query\AST;
  22. /**
  23. * ExistsExpression ::= ["NOT"] "EXISTS" "(" Subselect ")"
  24. *
  25. * @license http://www.opensource.org/licenses/lgpl-license.php LGPL
  26. * @link www.doctrine-project.org
  27. * @since 2.0
  28. * @version $Revision: 3938 $
  29. * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
  30. * @author Jonathan Wage <jonwage@gmail.com>
  31. * @author Roman Borschel <roman@code-factory.org>
  32. */
  33. class ExistsExpression extends Node
  34. {
  35. public $not;
  36. public $subselect;
  37. public function __construct($subselect)
  38. {
  39. $this->subselect = $subselect;
  40. }
  41. public function dispatch($sqlWalker)
  42. {
  43. return $sqlWalker->walkExistsExpression($this);
  44. }
  45. }