vendor/jackalope/jackalope/src/Jackalope/Query/RowIterator.php line 86

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  1. <?php
  3. namespace Jackalope\Query;
  5. use Countable;
  6. use SeekableIterator;
  7. use OutOfBoundsException;
  8. use Jackalope\ObjectManager;
  9. use Jackalope\FactoryInterface;
  11. /**
  12. * Iterator to efficiently iterate over the raw query result.
  13. *
  14. * @license http://www.apache.org/licenses Apache License Version 2.0, January 2004
  15. * @license http://opensource.org/licenses/MIT MIT License
  16. */
  17. class RowIterator implements SeekableIterator, Countable
  18. {
  19. /**
  20. * @var ObjectManager
  21. */
  22. protected $objectManager;
  24. /**
  25. * @var FactoryInterface
  26. */
  27. protected $factory;
  29. /**
  30. * @var array
  31. */
  32. protected $rows;
  34. /**
  35. * @var integer
  36. */
  37. protected $position = 0;
  39. /**
  40. * Create the iterator.
  41. *
  42. * @param FactoryInterface $factory the object factory
  43. * @param ObjectManager $objectManager
  44. * @param array $rows Raw data as described in QueryResult and \Jackalope\Transport\TransportInterface
  45. */
  46. public function __construct(FactoryInterface $factory, ObjectManager $objectManager, $rows)
  47. {
  48. $this->factory = $factory;
  49. $this->objectManager = $objectManager;
  50. $this->rows = $rows;
  51. }
  53. /**
  54. * @param int $position
  55. *
  56. * @return void
  57. *
  58. * @throws OutOfBoundsException
  59. */
  60. #[\ReturnTypeWillChange]
  61. public function seek($position)
  62. {
  63. $this->position = $position;
  65. if (!$this->valid()) {
  66. throw new OutOfBoundsException("invalid seek position ($position)");
  67. }
  68. }
  70. /**
  71. * @return integer
  72. */
  73. #[\ReturnTypeWillChange]
  74. public function count()
  75. {
  76. return count($this->rows);
  77. }
  79. #[\ReturnTypeWillChange]
  80. public function rewind()
  81. {
  82. $this->position = 0;
  83. }
  85. #[\ReturnTypeWillChange]
  86. public function current()
  87. {
  88. if (!$this->valid()) {
  89. return null;
  90. }
  92. return $this->factory->get(Row::class, [$this->objectManager, $this->rows[$this->position]]);
  93. }
  95. #[\ReturnTypeWillChange]
  96. public function key()
  97. {
  98. return $this->position;
  99. }
  101. #[\ReturnTypeWillChange]
  102. public function next()
  103. {
  104. ++$this->position;
  105. }
  107. /**
  108. * @return boolean
  109. */
  110. #[\ReturnTypeWillChange]
  111. public function valid()
  112. {
  113. return isset($this->rows[$this->position]);
  114. }
  115. }