117 lines
3.4 KiB
PHP
117 lines
3.4 KiB
PHP
<?php
|
|
|
|
/*
|
|
* (c) Markus Lanthaler <mail@markus-lanthaler.com>
|
|
*
|
|
* For the full copyright and license information, please view the LICENSE
|
|
* file that was distributed with this source code.
|
|
*/
|
|
|
|
namespace ML\JsonLD;
|
|
|
|
/**
|
|
* JSON-LD graph interface
|
|
*
|
|
* @author Markus Lanthaler <mail@markus-lanthaler.com>
|
|
*/
|
|
interface GraphInterface
|
|
{
|
|
/**
|
|
* Creates a new node which is linked to this document
|
|
*
|
|
* If a blank node identifier or an invalid ID is passed, the ID will be
|
|
* ignored and a new blank node identifier unique to the document is
|
|
* created for the node.
|
|
*
|
|
* If there exists already a node with the passed ID in the document,
|
|
* that node will be returned instead of creating a new one.
|
|
*
|
|
* @param null|string $id The ID of the node.
|
|
* @param bool $preserveBnodeId If set to false, blank nodes are
|
|
* relabeled to avoid collisions;
|
|
* otherwise the blank node identifier
|
|
* is preserved.
|
|
*
|
|
* @return Node The newly created node.
|
|
*/
|
|
public function createNode($id = null, $preserveBnodeId = false);
|
|
|
|
/**
|
|
* Removes a node from the document
|
|
*
|
|
* This will also eliminate all references to the node within the
|
|
* document.
|
|
*
|
|
* @param NodeInterface $node The node to remove from the document.
|
|
*
|
|
* @return self
|
|
*/
|
|
public function removeNode(NodeInterface $node);
|
|
|
|
/**
|
|
* Get all nodes
|
|
*
|
|
* @return Node[] Returns an array containing all nodes defined in the
|
|
* document.
|
|
*/
|
|
public function getNodes();
|
|
|
|
/**
|
|
* Get a node by ID
|
|
*
|
|
* @param string $id The ID of the node to retrieve.
|
|
*
|
|
* @return Node|null Returns the node if found; null otherwise.
|
|
*/
|
|
public function getNode($id);
|
|
|
|
/**
|
|
* Get nodes by type
|
|
*
|
|
* @param string|Node $type The type
|
|
*
|
|
* @return Node[] Returns an array containing all nodes of the specified
|
|
* type in the document.
|
|
*/
|
|
public function getNodesByType($type);
|
|
|
|
/**
|
|
* Check whether the document already contains a node with the
|
|
* specified ID
|
|
*
|
|
* @param string|Node $id The node ID to check. Blank node identifiers
|
|
* will always return false except a node instance
|
|
* which is part of the document will be passed
|
|
* instead of a string.
|
|
*
|
|
* @return bool Returns true if the document contains a node with the
|
|
* specified ID; false otherwise.
|
|
*/
|
|
public function containsNode($id);
|
|
|
|
/**
|
|
* Get the document the node belongs to
|
|
*
|
|
* @return null|DocumentInterface Returns the document the node belongs
|
|
* to or null if the node doesn't belong
|
|
* to any document.
|
|
*/
|
|
public function getDocument();
|
|
|
|
/**
|
|
* Removes the graph from the document
|
|
*
|
|
* @return self
|
|
*/
|
|
public function removeFromDocument();
|
|
|
|
/**
|
|
* Merges the specified graph into the current graph
|
|
*
|
|
* @param GraphInterface $graph The graph that should be merged into the
|
|
* current graph.
|
|
*
|
|
* @return self
|
|
*/
|
|
public function merge(GraphInterface $graph);
|
|
}
|