126 lines
2.1 KiB
PHP
126 lines
2.1 KiB
PHP
<?php
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/**
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* doctrine2
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* User: shustrik
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* Date: 2/6/14
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* Time: 7:03 PM
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*/
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namespace Doctrine\ORM\Query;
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class TreeWalkerChainIterator implements \Iterator, \ArrayAccess
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{
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/**
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* @var TreeWalker[]
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*/
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private $walkers = array();
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/**
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* @var TreeWalkerChain
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*/
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private $treeWalkerChain;
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/**
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* @var
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*/
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private $query;
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/**
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* @var
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*/
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private $parserResult;
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public function __construct(TreeWalkerChain $treeWalkerChain, $query, $parserResult)
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{
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$this->treeWalkerChain = $treeWalkerChain;
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$this->query = $query;
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$this->parserResult = $parserResult;
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}
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/**
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* {@inheritdoc}
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*/
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function rewind()
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{
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return reset($this->walkers);
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}
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/**
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* {@inheritdoc}
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*/
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function current()
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{
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return $this->offsetGet(key($this->walkers));
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}
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/**
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* {@inheritdoc}
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*/
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function key()
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{
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return key($this->walkers);
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}
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/**
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* {@inheritdoc}
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*/
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function next()
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{
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next($this->walkers);
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return $this->offsetGet(key($this->walkers));
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}
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/**
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* {@inheritdoc}
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*/
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function valid()
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{
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return key($this->walkers) !== null;
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}
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/**
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* {@inheritdoc}
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*/
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public function offsetExists($offset)
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{
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return isset($this->walkers[$offset]);
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}
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/**
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* {@inheritdoc}
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*/
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public function offsetGet($offset)
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{
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if ($this->offsetExists($offset)) {
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return new $this->walkers[$offset](
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$this->query,
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$this->parserResult,
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$this->treeWalkerChain->getQueryComponents()
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);
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}
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return null;
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}
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/**
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* {@inheritdoc}
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*/
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public function offsetSet($offset, $value)
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{
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if (is_null($offset)) {
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$this->walkers[] = $value;
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} else {
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$this->walkers[$offset] = $value;
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}
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}
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/**
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* {@inheritdoc}
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*/
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public function offsetUnset($offset)
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{
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if ($this->offsetExists($offset)) {
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unset($this->walkers[$offset]);
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}
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}
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} |