Node.php

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<?php
 
namespace Sabre\VObject;
 
use Sabre\Xml;
 
abstract class Node
    implements \IteratorAggregate,
               \ArrayAccess,
               \Countable,
               \JsonSerializable,
               Xml\XmlSerializable {
 
    const REPAIR = 1;
 
    const PROFILE_CARDDAV = 2;
 
    const PROFILE_CALDAV = 4;
 
    public $parent;
 
    protected $iterator = null;
 
    protected $root;
 
    abstract function serialize();
 
    abstract function jsonSerialize();
 
    abstract function xmlSerialize(Xml\Writer $writer);
 
    function destroy() {
 
        $this->parent = null;
        $this->root = null;
 
    }
 
    /* {{{ IteratorAggregator interface */
 
    function getIterator() {
 
        if (!is_null($this->iterator)) {
            return $this->iterator;
        }
 
        return new ElementList([$this]);
 
    }
 
    function setIterator(ElementList $iterator) {
 
        $this->iterator = $iterator;
 
    }
 
    function validate($options = 0) {
 
        return [];
 
    }
 
    /* }}} */
 
    /* {{{ Countable interface */
 
    function count() {
 
        $it = $this->getIterator();
        return $it->count();
 
    }
 
    /* }}} */
 
    /* {{{ ArrayAccess Interface */
 
 
    function offsetExists($offset) {
 
        $iterator = $this->getIterator();
        return $iterator->offsetExists($offset);
 
    }
 
    function offsetGet($offset) {
 
        $iterator = $this->getIterator();
        return $iterator->offsetGet($offset);
 
    }
 
    function offsetSet($offset, $value) {
 
        $iterator = $this->getIterator();
        $iterator->offsetSet($offset, $value);
 
    // @codeCoverageIgnoreStart
    //
    // This method always throws an exception, so we ignore the closing
    // brace
    }
    // @codeCoverageIgnoreEnd
 
    function offsetUnset($offset) {
 
        $iterator = $this->getIterator();
        $iterator->offsetUnset($offset);
 
    // @codeCoverageIgnoreStart
    //
    // This method always throws an exception, so we ignore the closing
    // brace
    }
    // @codeCoverageIgnoreEnd
 
    /* }}} */
}