DbEmptyIterator

Complexity

Total Complexity

5

Size/Duplication

Total Lines	53
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Test Coverage

Coverage

0%

Importance

Changes	1
Bugs	0	Features	0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	current()	0	3	1
A	next()	0	3	1
A	key()	0	3	1
A	valid()	0	3	1
A	rewind()	0	3	1

<?php

/**
 * Class DbEmptyIterator
 *
 * Empty iterator
 */
class DbEmptyIterator extends DbRowIterator {

  /**
   * Return the current element
   * @link http://php.net/manual/en/iterator.current.php
   * @return mixed Can return any type.
   * @since 5.0.0
   */
  public function current() {
    return null;
  }

  /**
   * Move forward to next element
   * @link http://php.net/manual/en/iterator.next.php
   * @return void Any returned value is ignored.
   * @since 5.0.0
   */
  public function next() {
    // Doing nothing
  }

  /**
   * Return the key of the current element
   * @link http://php.net/manual/en/iterator.key.php
   * @return mixed scalar on success, or null on failure.
   * @since 5.0.0
   */
  public function key() {
    return null;
  }

  /**
   * Checks if current position is valid
   * @link http://php.net/manual/en/iterator.valid.php
   * @return boolean The return value will be casted to boolean and then evaluated.
   * Returns true on success or false on failure.
   * @since 5.0.0
   */
  public function valid() {
    return false;
  }

  /**
   * Rewind the Iterator to the first element
   * @link http://php.net/manual/en/iterator.rewind.php
   * @return void Any returned value is ignored.
   * @since 5.0.0
   */
  public function rewind() {
    // Doing nothing
  }
}