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<?php |
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namespace TheCodingMachine\TDBM; |
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use Iterator; |
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/** |
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* @internal |
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*/ |
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class EmptyInnerResultIterator implements Iterator, InnerResultIteratorInterface |
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{ |
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/** |
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* Return the current element |
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* @link https://php.net/manual/en/iterator.current.php |
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* @return mixed Can return any type. |
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* @since 5.0.0 |
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*/ |
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public function current() |
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{ |
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return null; |
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} |
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/** |
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* Move forward to next element |
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* @link https://php.net/manual/en/iterator.next.php |
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* @return void Any returned value is ignored. |
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* @since 5.0.0 |
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*/ |
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public function next() |
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{ |
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} |
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/** |
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* Return the key of the current element |
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* @link https://php.net/manual/en/iterator.key.php |
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* @return mixed scalar on success, or null on failure. |
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* @since 5.0.0 |
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*/ |
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public function key() |
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{ |
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return null; |
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} |
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/** |
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* Checks if current position is valid |
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* @link https://php.net/manual/en/iterator.valid.php |
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* @return boolean The return value will be casted to boolean and then evaluated. |
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* Returns true on success or false on failure. |
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* @since 5.0.0 |
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*/ |
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public function valid() |
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{ |
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return false; |
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} |
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/** |
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* Rewind the Iterator to the first element |
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* @link https://php.net/manual/en/iterator.rewind.php |
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* @return void Any returned value is ignored. |
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* @since 5.0.0 |
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*/ |
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public function rewind() |
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{ |
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} |
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/** |
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* Whether a offset exists |
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* @link https://php.net/manual/en/arrayaccess.offsetexists.php |
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* @param mixed $offset <p> |
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* An offset to check for. |
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* </p> |
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* @return boolean true on success or false on failure. |
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* </p> |
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* <p> |
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* The return value will be casted to boolean if non-boolean was returned. |
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* @since 5.0.0 |
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*/ |
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public function offsetExists($offset) |
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{ |
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return false; |
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} |
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/** |
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* Offset to retrieve |
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* @link https://php.net/manual/en/arrayaccess.offsetget.php |
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* @param mixed $offset <p> |
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* The offset to retrieve. |
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* </p> |
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* @return mixed Can return all value types. |
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* @since 5.0.0 |
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*/ |
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public function offsetGet($offset) |
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{ |
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throw new TDBMInvalidOffsetException('Offset "'.$offset.'" does not exist in result set.'); |
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} |
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/** |
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* Offset to set |
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* @link https://php.net/manual/en/arrayaccess.offsetset.php |
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* @param mixed $offset <p> |
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* The offset to assign the value to. |
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* </p> |
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* @param mixed $value <p> |
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* The value to set. |
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* </p> |
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* @return void |
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* @since 5.0.0 |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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throw new TDBMInvalidOperationException('You cannot set values in a TDBM result set.'); |
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} |
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/** |
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* Offset to unset |
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* @link https://php.net/manual/en/arrayaccess.offsetunset.php |
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* @param mixed $offset <p> |
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* The offset to unset. |
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* </p> |
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* @return void |
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* @since 5.0.0 |
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*/ |
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public function offsetUnset($offset) |
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{ |
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throw new TDBMInvalidOperationException('You cannot unset values in a TDBM result set.'); |
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} |
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/** |
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* Count elements of an object |
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* @link https://php.net/manual/en/countable.count.php |
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* @return int The custom count as an integer. |
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* </p> |
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* <p> |
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* The return value is cast to an integer. |
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* @since 5.1.0 |
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*/ |
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public function count() |
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{ |
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return 0; |
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} |
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} |
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thecodingmachine /
tdbm
