ZendDataCache.php 2.2 KB

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  1. <?php
  2. /*
  3. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  4. * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  5. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  6. * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  7. * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  8. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  9. * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  10. * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  11. * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  12. * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  13. * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  14. *
  15. * This software consists of voluntary contributions made by many individuals
  16. * and is licensed under the MIT license. For more information, see
  17. * <http://www.doctrine-project.org>.
  18. */
  19. namespace Doctrine\Common\Cache;
  20. /**
  21. * Zend Data Cache cache driver.
  22. *
  23. * @link www.doctrine-project.org
  24. * @since 2.0
  25. * @author Ralph Schindler <ralph.schindler@zend.com>
  26. * @author Guilherme Blanco <guilhermeblanco@hotmail.com>
  27. */
  28. class ZendDataCache extends CacheProvider
  29. {
  30. /**
  31. * {@inheritdoc}
  32. */
  33. protected function doFetch($id)
  34. {
  35. return zend_shm_cache_fetch($id);
  36. }
  37. /**
  38. * {@inheritdoc}
  39. */
  40. protected function doContains($id)
  41. {
  42. return (false !== zend_shm_cache_fetch($id));
  43. }
  44. /**
  45. * {@inheritdoc}
  46. */
  47. protected function doSave($id, $data, $lifeTime = 0)
  48. {
  49. return zend_shm_cache_store($id, $data, $lifeTime);
  50. }
  51. /**
  52. * {@inheritdoc}
  53. */
  54. protected function doDelete($id)
  55. {
  56. return zend_shm_cache_delete($id);
  57. }
  58. /**
  59. * {@inheritdoc}
  60. */
  61. protected function doFlush()
  62. {
  63. $namespace = $this->getNamespace();
  64. if (empty($namespace)) {
  65. return zend_shm_cache_clear();
  66. }
  67. return zend_shm_cache_clear($namespace);
  68. }
  69. /**
  70. * {@inheritdoc}
  71. */
  72. protected function doGetStats()
  73. {
  74. return null;
  75. }
  76. }