133 lines
3.1 KiB
PHP
133 lines
3.1 KiB
PHP
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<?php
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/**
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* Part of XML_XRD
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*
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* PHP version 5
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*
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* @category XML
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* @package XML_XRD
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* @author Christian Weiske <cweiske@php.net>
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @link http://pear.php.net/package/XML_XRD
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*/
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require_once 'XML/XRD/LogicException.php';
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require_once 'XML/XRD/Element/Property.php';
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/**
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* Provides ArrayAccess to extending classes (XML_XRD and XML_XRD_Element_Link).
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*
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* By extending PropertyAccess, access to properties is possible with
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* "$object['propertyType']" array access notation.
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*
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* @category XML
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* @package XML_XRD
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* @author Christian Weiske <cweiske@php.net>
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* @license http://www.gnu.org/copyleft/lesser.html LGPL
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* @version Release: @package_version@
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* @link http://pear.php.net/package/XML_XRD
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*/
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abstract class XML_XRD_PropertyAccess implements ArrayAccess
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{
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/**
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* Array of property objects
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*
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* @var array
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*/
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public $properties = array();
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/**
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* Check if the property with the given type exists
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*
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* Part of the ArrayAccess interface
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*
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* @param string $type Property type to check for
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*
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* @return boolean True if it exists
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*/
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public function offsetExists($type)
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{
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foreach ($this->properties as $prop) {
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if ($prop->type == $type) {
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return true;
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}
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}
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return false;
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}
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/**
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* Return the highest ranked property with the given type
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*
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* Part of the ArrayAccess interface
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*
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* @param string $type Property type to check for
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*
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* @return string Property value or NULL if empty
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*/
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public function offsetGet($type)
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{
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foreach ($this->properties as $prop) {
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if ($prop->type == $type) {
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return $prop->value;
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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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* Not implemented.
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*
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* Part of the ArrayAccess interface
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*
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* @param string $type Property type to check for
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* @param string $value New property value
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*
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* @return void
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*
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* @throws XML_XRD_LogicException Always
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*/
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public function offsetSet($type, $value)
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{
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throw new XML_XRD_LogicException('Changing properties not implemented');
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}
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/**
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* Not implemented.
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*
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* Part of the ArrayAccess interface
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*
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* @param string $type Property type to check for
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*
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* @return void
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*
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* @throws XML_XRD_LogicException Always
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*/
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public function offsetUnset($type)
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{
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throw new XML_XRD_LogicException('Changing properties not implemented');
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}
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/**
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* Get all properties with the given type
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*
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* @param string $type Property type to filter by
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*
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* @return array Array of XML_XRD_Element_Property objects
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*/
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public function getProperties($type = null)
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{
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if ($type === null) {
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return $this->properties;
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}
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$properties = array();
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foreach ($this->properties as $prop) {
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if ($prop->type == $type) {
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$properties[] = $prop;
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}
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}
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return $properties;
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}
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}
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?>
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