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doctrine2/lib/Doctrine/Node.php

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<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
/**
* Doctrine_Node
*
* @package Doctrine
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Joe Simms <joe.simms@websites4.com>
*/
class Doctrine_Node implements IteratorAggregate
{
/**
* @param object $record reference to associated Doctrine_Record instance
*/
protected $record;
/**
* @param array $options
*/
protected $options;
/**
* @param string $iteratorType (Pre | Post | Level)
*/
protected $iteratorType;
/**
* @param array $iteratorOptions
*/
protected $iteratorOptions;
/**
* The tree to which the node belongs.
*
* @var unknown_type
*/
protected $_tree;
/**
* contructor, creates node with reference to record and any options
*
* @param object $record instance of Doctrine_Record
* @param array $options options
*/
public function __construct(Doctrine_Record $record, $options)
{
$this->record = $record;
$this->options = $options;
$this->_tree = $this->record->getTable()->getTree();
}
/**
* factory method to return node instance based upon chosen implementation
*
* @param object $record instance of Doctrine_Record
* @param string $impName implementation (NestedSet, AdjacencyList, MaterializedPath)
* @param array $options options
* @return object $options instance of Doctrine_Node
*/
public static function factory(Doctrine_Record $record, $implName, $options = array())
{
$class = 'Doctrine_Node_' . $implName;
if (!class_exists($class)) {
throw new Doctrine_Node_Exception("The class $class must exist and extend Doctrine_Node");
}
return new $class($record, $options);
}
/**
* setter for record attribute
*
* @param object $record instance of Doctrine_Record
*/
public function setRecord(Doctrine_Record $record)
{
$this->record = $record;
}
/**
* getter for record attribute
*
* @return object instance of Doctrine_Record
*/
public function getRecord()
{
return $this->record;
}
/**
* convenience function for getIterator
*
* @param string $type type of iterator (Pre | Post | Level)
* @param array $options options
*/
public function traverse($type = 'Pre', $options = array())
{
return $this->getIterator($type, $options);
}
/**
* get iterator
*
* @param string $type type of iterator (Pre | Post | Level)
* @param array $options options
*/
public function getIterator($type = null, $options = null)
{
if ($type === null) {
$type = (isset($this->iteratorType) ? $this->iteratorType : 'Pre');
}
if ($options === null) {
$options = (isset($this->iteratorOptions) ? $this->iteratorOptions : array());
}
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$implName = $this->record->getTable()->getOption('treeImpl');
$iteratorClass = 'Doctrine_Node_' . $implName . '_' . ucfirst(strtolower($type)) . 'OrderIterator';
return new $iteratorClass($this->record, $options);
}
/**
* sets node's iterator type
*
* @param int
*/
public function setIteratorType($type)
{
$this->iteratorType = $type;
}
/**
* sets node's iterator options
*
* @param int
*/
public function setIteratorOptions($options)
{
$this->iteratorOptions = $options;
}
}