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source: Dev/branches/rest-dojo-ui/server/rdfapi/resModel/ResModel.php @ 289

Last change on this file since 289 was 256, checked in by hendrikvanantwerpen, 13 years ago
Reworked project structure based on REST interaction and Dojo library. As soon as this is stable, the old jQueryUI branch can be removed (it's kept for reference).
File size: 24.3 KB

Line
1	<?php
2	// ----------------------------------------------------------------------------------
3	// Class: ResModel
4	// ----------------------------------------------------------------------------------
5
6	/**
7	* A ResModel provides an resource centric view on an underlying RDF model.
8	* ResModels show information not as statements but as resources with
9	* properties, similar to Jena models. ResModels may create Resources [URI
10	* nodes and bnodes]. Creating a Resource does not make the Resource visible to
11	* the model; Resources are only "in" Models if Statements about them are added
12	* to the Model. Similarly the only way to "remove" a Resource from a Model is
13	* to remove all the Statements that mention it.
14	*
15	* When a Resource or Literal is created by a Model, the Model is free to re-use an existing
16	* Resource or Literal object with the correct values, or it may create a fresh one.
17	*
18	* @version $Id: ResModel.php 562 2008-02-29 15:30:18Z cax $
19	* @author Daniel Westphal <mail at d-westphal dot de>
20	*
21	*
22	* @package resModel
23	* @access public
24	**/
25
26	class ResModel
27	{
28
29	/**
30	* Holds a reference to the assoiated memmodel/dbmodel/infmodel
31	* @var ResResource
32	* @access private
33	*/
34	var $model;
35
36
37	/**
38	* Constructor
39	* You have to supply a memmodel/dbmodel/infmodel to save the statements.
40	*
41	* @param object model $model
42	* @access public
43	*/
44	function ResModel(& $model)
45	{
46	if (!is_a($model,'Model'))
47	trigger_error(RDFAPI_ERROR . '(class: ResourceLayer; method: ResourceLayer):
48	$model has to be object of class Model', E_USER_ERROR);
49
50	$this->model =& $model;
51	}
52
53	/**
54	* Create a new resource associated with this model.
55	* If the uri string isn't set, this creates a bnode.
56	* Otherwise it creates a URI node.
57	* A URI resource is .equals() to any other URI Resource with the same URI
58	* (even in a different model - be warned).
59	*
60	* This method may return an existing Resource with the correct URI and model,
61	* or it may construct a fresh one, as it sees fit.
62	*
63	* Operations on the result Resource may change this model.
64	*
65	* @param string $uri
66	* @return object ResResource
67	* @access public
68	*/
69	function createResource($uri = null)
70	{
71	$resResource = new ResResource($uri);
72	//associate the resource with this model, and get a unique identifier
73	//if it is bnode.
74	$resResource->setAssociatedModel($this);
75
76	return $resResource;
77	}
78
79	/**
80	* Create a new Property associated with this model.
81	* This method may return an existing property with the correct URI and model,
82	* or it may construct a fresh one, as it sees fit.
83	*
84	* Subsequent operations on the returned property may modify this model.
85	*
86	*
87	* @param string $uri
88	* @return object ResProperty
89	* @access public
90	*/
91	function createProperty($uri = null)
92	{
93	$resProperty = new ResProperty($uri);
94	$resProperty->setAssociatedModel($this);
95
96	return $resProperty;
97	}
98
99	/**
100	* Create an untyped literal from a String value with a specified language.
101	*
102	* If you want to type this literal, you have to set a datatype before
103	* adding it to the model.
104	*
105	*
106	* @param string $label
107	* @param string $languageTag
108	* @return object ResLiteral
109	* @access public
110	*/
111	function createLiteral($label,$languageTag = null)
112	{
113	$resLiteral = new ResLiteral($label,$languageTag);
114	$resLiteral->setAssociatedModel($this);
115
116	return $resLiteral;
117	}
118
119	/**
120	* General method to search for triples.
121	* NULL input for any parameter will match anything.
122	* Example: $result = $m->find( NULL, NULL, $node );
123	* Finds all Statements with $node as object.
124	* Returns an array of statements with ResResources.
125	*
126	* @param object ResResource $subject
127	* @param object ResResource $predicate
128	* @param object ResResource $object
129	* @return array
130	* @access public
131	* @throws PhpError
132	*/
133	function find($subject,$predicate, $object)
134	{
135	$result=array();
136	//convert ResResources to Resources and Blanknodes
137	$resmodel=$this->model->find( $this->_resNode2Node($subject),
138	$this->_resNode2Node($predicate),
139	$this->_resNode2Node($object)
140	);
141	//convert Resources, Blanknodes to ResResources
142	foreach ($resmodel->triples as $statement)
143	{
144	$result[]=new Statement($this->_node2ResNode($statement->getSubject()),
145	$this->_node2ResNode($statement->getPredicate(),true),
146	$this->_node2ResNode($statement->getObject())
147	);
148	};
149	return $result;
150
151	}
152
153	/**
154	* Searches for triples and returns the first matching statement.
155	* NULL input for any parameter will match anything.
156	* Example: $result = $m->findFirstMatchingStatement( NULL, NULL, $node );
157	* Returns the first statement with ResResources of the Model where the object equals $node.
158	* Returns an NULL if nothing is found.
159	* You can define an offset to search.
160	*
161	* @param object Node $subject
162	* @param object Node $predicate
163	* @param object Node $object
164	* @param integer $offset
165	* @return object Statement
166	* @access public
167	*/
168	function findFirstMatchingStatement($subject,$predicate,$object,$offset = 0)
169	{
170
171	$statement = $this->model->findFirstMatchingStatement( $this->_resNode2Node($subject),
172	$this->_resNode2Node($predicate),
173	$this->_resNode2Node($object),
174	$offset
175	);
176	if ($statement!==null)
177	{
178	return new Statement( $this->_node2ResNode($statement->getSubject()),
179	$this->_node2ResNode($statement->getPredicate(),true),
180	$this->_node2ResNode($statement->getObject())
181	);
182	} else
183	{
184	return null;
185	}
186	}
187
188	/**
189	* Adds a new triple to the Model without checking if the statement is already in the Model.
190	* So if you want a duplicate free Model use the addWithoutDuplicates() function (which is slower then add())
191	* Expects a statements with ResResources(ResLiterals)
192	*
193	* @param object Statement $statement
194	* @access public
195	* @throws PhpError
196	*/
197	function add($statement)
198	{
199	return $this->model->add(new Statement( $this->_resNode2Node($statement->getSubject()),
200	$this->_resNode2Node($statement->getPredicate()),
201	$this->_resNode2Node($statement->getObject()))
202	);
203	}
204	/**
205	* Checks if a new statement is already in the Model and adds the statement, if it is not in the Model.
206	* addWithoutDuplicates() is significantly slower then add().
207	* Retruns TRUE if the statement is added.
208	* FALSE otherwise.
209	* Expects a statements with ResResources(ResLiterals)
210	*
211	* @param object Statement $statement
212	* @return boolean
213	* @access public
214	* @throws PhpError
215	*/
216	function addWithoutDuplicates($statement)
217	{
218	return $this->model->addWithoutDuplicates(new Statement($this->_resNode2Node($statement->getSubject()),
219	$this->_resNode2Node($statement->getPredicate()),
220	$this->_resNode2Node($statement->getObject()))
221	);
222	}
223
224	/**
225	* Tests if the Model contains the given statement.
226	* TRUE if the statement belongs to the model;
227	* FALSE otherwise.
228	* Expects a statement of ResResources(ResLiterals)
229	*
230	* @param object Statement $statement
231	* @return boolean
232	* @access public
233	*/
234	function contains(& $statement)
235	{
236
237	return $this->model->contains(new Statement($this->_resNode2Node($statement->getSubject()),
238	$this->_resNode2Node($statement->getPredicate()),
239	$this->_resNode2Node($statement->getObject()))
240	);
241	}
242
243	/**
244	* Determine if all of the statements in a model are also contained in this model.
245	* True if all of the statements in $model are also contained in this model and false otherwise.
246	*
247	* @param object Model &$model
248	* @return boolean
249	* @access public
250	*/
251	function containsAll(& $model)
252	{
253	if (is_a($model,'ResModel'))
254	return $this->model->containsAll($model->getModel());
255
256	return $this->model->containsAll($model);
257	}
258
259	/**
260	* Determine if any of the statements in a model are also contained in this model.
261	* True if any of the statements in $model are also contained in this model and false otherwise.
262	*
263	* @param object Model &$model
264	* @return boolean
265	* @access public
266	*/
267	function containsAny(& $model)
268	{
269	if (is_a($model,'ResModel'))
270	return $this->model->containsAny($model->getModel());
271	return $this->model->containsAny($model);
272	}
273
274	/**
275	* Determine if the node (ResResource / ResLiteral) $node appears in any statement of this model.
276	*
277	* @param object Node &$node
278	* @return boolean
279	* @access public
280	*/
281	function containsResource(& $node)
282	{
283	if ($this->findFirstMatchingStatement($node,null,null) === null)
284	if ($this->findFirstMatchingStatement(null,$node,null) === null)
285	if ($this->findFirstMatchingStatement(null,null,$node) === null)
286	return false;
287
288	return true;
289	}
290
291	/**
292	* Create a literal from a String value with the $dtype Datatype
293	* An existing literal of the right value may be returned, or a fresh one created.
294	*
295	* @param string $value
296	* @param string $dtype
297	* @return object ResLiteral
298	* @access public
299	*/
300	function createTypedLiteral($value,$dtype)
301	{
302	$resLiteral = new ResLiteral($value);
303	$resLiteral->setDatatype($dtype);
304	$resLiteral->setAssociatedModel($this);
305
306	return $resLiteral;
307	}
308
309	/**
310	* Checks if two models are equal.
311	* Two models are equal if and only if the two RDF graphs they represent are isomorphic.
312	*
313	* Warning: This method doesn't work correct with models where the same blank node has different
314	* identifiers in the two models. We will correct this in a future version.
315	*
316	* @access public
317	* @param object model &$that
318	* @throws phpErrpr
319	* @return boolean
320	*/
321	function equals(& $that)
322	{
323	if (is_a($that,'ResModel'))
324	return $this->model->equals($that->getModel());
325	return $this->model->equals($that);
326	}
327
328	/**
329	* Returns a new model that is the subtraction of another model from this model.
330	*
331	* @param object Model $model
332	* @return object MemModel
333	* @access public
334	* @throws phpErrpr
335	*/
336	function subtract($model)
337	{
338	if (is_a($model,'ResModel'))
339	return $this->model->subtract($model->getModel());
340	return $this->model->subtract($model);
341	}
342
343	/**
344	* Answer a statement find(s, p, null) with ResResources(ResLiterals) from this model.
345	* If none exist, return null; if several exist, pick one arbitrarily.
346	*
347	* @param object ResResource $subject
348	* @param object ResResource $property
349	* @return object Statement
350	* @access public
351	* @throws phpErrpr
352	*/
353	function getProperty($subject,$property)
354	{
355
356	$statement= $this->model->findFirstMatchingStatement( $this->_resNode2Node($subject),
357	$this->_resNode2Node($property),
358	null
359	);
360	if ($statement === null)
361	return null;
362
363	return new Statement($this->_node2ResNode($statement->getSubject()),
364	$this->_node2ResNode($statement->getPredicate(),true),
365	$this->_node2ResNode($statement->getObject())
366	);
367
368	}
369
370	/**
371	* Checks if MemModel is empty
372	*
373	* @return boolean
374	* @access public
375	*/
376	function isEmpty()
377	{
378	return $this->model->isEmpty();
379	}
380
381	/**
382	* Returns a ResIterator with all objects in a model.
383	*
384	* @return object ResIterator
385	* @access public
386	* @throws phpErrpr
387	*/
388	function listObjects()
389	{
390	return $this->listObjectsOfProperty(null);
391	}
392
393	/**
394	* Returns a ResIterator with all objects with a given property and property value.
395	*
396	* @param object ResResource $property
397	* @param object ResResource $value
398	* @return object ResIterator
399	* @access public
400	*/
401	function listObjectsOfProperty($property, $value = null)
402	{
403	return new ResIterator(null,$property,$value,'o',$this);
404	}
405
406
407	/**
408	* Returns a ResIterator with all subjects in a model.
409	*
410	* @return object ResIterator
411	* @access public
412	* @throws phpErrpr
413	*/
414	function listSubjects()
415	{
416	return $this->listSubjectsWithProperty(null);
417	}
418
419	/**
420	* Returns a ResIterator with all subjects with a given property and property value.
421	*
422	* @param object ResResource $property
423	* @param object ResResource $value
424	* @return object ResIterator
425	* @access public
426	* @throws phpErrpr
427	*/
428	function listSubjectsWithProperty($property,$value = null)
429	{
430	return new ResIterator(null,$property,$value,'s',$this);
431	}
432
433	/**
434	* Removes the statement of ResResources(ResTriples) from the MemModel.
435	* TRUE if the statement is removed.
436	* FALSE otherwise.
437	*
438	* @param object Statement $statement
439	* @return boolean
440	* @access public
441	* @throws PhpError
442	*/
443	function remove($statement)
444	{
445	return $this->model->remove(new Statement( $this->_resNode2Node($statement->getSubject()),
446	$this->_resNode2Node($statement->getPredicate()),
447	$this->_resNode2Node($statement->getObject())
448	));
449	}
450
451	/**
452	* Number of statements in the MemModel
453	*
454	* @return integer
455	* @access public
456	*/
457	function size()
458	{
459	return $this->model->size();
460	}
461
462	/**
463	* Returns a new Model that is the set-union of the model with another model.
464	* Duplicate statements are removed. If you want to allow duplicates, use addModel() which is much faster.
465	*
466	* The result of taking the set-union of two or more RDF graphs (i.e. sets of triples)
467	* is another graph, which we will call the merge of the graphs.
468	* Each of the original graphs is a subgraph of the merged graph. Notice that when forming
469	* a merged graph, two occurrences of a given uriref or literal as nodes in two different
470	* graphs become a single node in the union graph (since by definition they are the same
471	* uriref or literal) but blank nodes are not 'merged' in this way; and arcs are of course
472	* never merged. In particular, this means that every blank node in a merged graph can be
473	* identified as coming from one particular graph in the original set of graphs.
474	*
475	* Notice that one does not, in general, obtain the merge of a set of graphs by concatenating
476	* their corresponding N-triples documents and constructing the graph described by the merged
477	* document, since if some of the documents use the same node identifiers, the merged document
478	* will describe a graph in which some of the blank nodes have been 'accidentally' merged.
479	* To merge Ntriples documents it is necessary to check if the same nodeID is used in two or
480	* more documents, and to replace it with a distinct nodeID in each of them, before merging the
481	* documents. (Not implemented yet !!!!!!!!!!!)
482	*
483	* @param object Model $model
484	* @return object MemModel
485	* @access public
486	* @throws phpErrpr
487	*
488	*/
489	function & unite(& $model)
490	{
491	if (is_a($model,'ResModel'))
492	return $this->model->unite($model->getModel());
493	return $this->model->unite($model);
494	}
495
496	/**
497	* Adds another model to this MemModel.
498	* Duplicate statements are not removed.
499	* If you don't want duplicates, use unite().
500	* If any statement of the model to be added to this model contains a blankNode
501	* with an identifier already existing in this model, a new blankNode is generated.
502	*
503	* @param object Model $model
504	* @access public
505	* @throws phpErrpr
506	*
507	*/
508	function addModel(&$model)
509	{
510	if (is_a($model,'ResModel'))
511	return $this->model->addModel($model->getModel());
512	return $this->model->addModel($model);
513	}
514
515	/**
516	* Create a new RDF Container from type rdf:Alt
517	* This method may return an existing container with the correct URI and model,
518	* or it may construct a fresh one, as it sees fit.
519	*
520	* Subsequent operations on the returned Container may modify this model.
521	*
522	*
523	* @param string $uri
524	* @return object ResProperty
525	* @access public
526	*/
527	function createAlt($uri = null)
528	{
529	$resAlt = new ResAlt($uri);
530	$resAlt->setAssociatedModel($this);
531
532	return $resAlt;
533	}
534
535	/**
536	* Create a new RDF Container from type rdf:Bag
537	* This method may return an existing container with the correct URI and model,
538	* or it may construct a fresh one, as it sees fit.
539	*
540	* Subsequent operations on the returned Container may modify this model.
541	*
542	*
543	* @param string $uri
544	* @return object ResProperty
545	* @access public
546	*/
547	function createBag($uri = null)
548	{
549	$resBag = new ResBag($uri);
550	$resBag->setAssociatedModel($this);
551
552	return $resBag;
553	}
554
555	/**
556	* Create a new RDF Container from type rdf:Seq
557	* This method may return an existing container with the correct URI and model,
558	* or it may construct a fresh one, as it sees fit.
559	*
560	* Subsequent operations on the returned Container may modify this model.
561	*
562	*
563	* @param string $uri
564	* @return object ResProperty
565	* @access public
566	*/
567	function createSeq($uri = null)
568	{
569	$resSeq = new ResSeq($uri);
570	$resSeq->setAssociatedModel($this);
571
572	return $resSeq;
573	}
574
575	/**
576	* Create a new RDF Collection from type rdf:List
577	* This method may return an existing container with the correct URI and model,
578	* or it may construct a fresh one, as it sees fit.
579	*
580	* Subsequent operations on the returned Container may modify this model.
581	*
582	*
583	* @param string $uri
584	* @return object ResProperty
585	* @access public
586	*/
587	function createList($uri = null)
588	{
589	$resList = new ResList($uri);
590	$resList->setAssociatedModel($this);
591
592	return $resList;
593	}
594
595	/**
596	* Returns a reference to the underlying model (Mem/DB/InfModel) that contains the statements
597	*
598	*
599	* @return object Model
600	* @access public
601	*/
602	function & getModel()
603	{
604	return $this->model;
605	}
606
607
608	/**
609	* Internal method, that returns a resource URI that is unique for the Model.
610	* URIs are generated using the base_uri of the Model, the prefix and a unique number.
611	* If no prefix is defined, the bNode prefix, defined in constants.php, is used.
612	*
613	* @param string $prefix
614	* @return string
615	* @access private
616	*/
617	function getUniqueResourceURI($bnodePrefix)
618	{
619	return $this->model->getUniqueResourceURI($bnodePrefix);
620	}
621
622	/**
623	* Load a model from a file containing RDF, N3 or N-Triples.
624	* This function recognizes the suffix of the filename (.n3 or .rdf) and
625	* calls a suitable parser, if no $type is given as string ("rdf" "n3" "nt");
626	* If the model is not empty, the contents of the file is added to this DbModel.
627	*
628	* @param string $filename
629	* @param string $type
630	* @param boolean $stream
631	* @access public
632	*/
633	function load($filename, $type = NULL, $stream=false)
634	{
635	$this->model->load($filename, $type, $stream);
636	}
637
638	/**
639	* Return current baseURI.
640	*
641	* @return string
642	* @access public
643	*/
644	function getBaseURI()
645	{
646	return $this->model->getBaseURI();
647	}
648
649	/**
650	* Saves the RDF,N3 or N-Triple serialization of the MemModel to a file.
651	* You can decide to which format the model should be serialized by using a
652	* corresponding suffix-string as $type parameter. If no $type parameter
653	* is placed this method will serialize the model to XML/RDF format.
654	* Returns FALSE if the MemModel couldn't be saved to the file.
655	*
656	* @access public
657	* @param string $filename
658	* @param string $type
659	* @throws PhpError
660	* @return boolean
661	*/
662	function saveAs($filename, $type ='rdf')
663	{
664	return $this->model->saveAs($filename, $type ='rdf');
665	}
666
667	/**
668	* Writes the RDF serialization of the MemModel as HTML table.
669	*
670	* @access public
671	*/
672	function writeAsHTMLTable()
673	{
674	$this->model->writeAsHtmlTable();
675	}
676
677	/**
678	* Returns a new model containing all the statements which are in both this model and another.
679	*
680	* @param object Model $model
681	* @return object MemModel
682	* @access public
683	* @throws phpErrpr
684	*/
685	function & intersect(& $model)
686	{
687	if (is_a($model,'ResModel'))
688	return $this->model->intersect($model->getModel());
689	return $this->model->intersect($model);
690	}
691
692	/**
693	* converts a Resource,Blanknode,Literal into a ResResource, ResProperty, or ResLiteral
694	*
695	* @param object Node $node
696	* @param boolean $isProperty
697	* @return object ResResource / ResProperty / ResLiteral
698	* @access private
699	* @throws phpErrpr
700	*/
701	function _node2ResNode($node, $isProperty = false)
702	{
703	if (is_a($node,'Literal'))
704	{
705	$return= new ResLiteral($node->getLabel(),$node->getLanguage());
706	$return->setDatatype($node->getDatatype());
707	$return->setAssociatedModel($this);
708
709	return $return;
710	}
711	if (is_a($node,'Resource'))
712	{
713	if ($isProperty)
714	{
715	$res= new ResProperty($node->getLabel());
716	} else
717	{
718	$res= new ResResource($node->getLabel());
719	}
720	$res->setAssociatedModel($this);
721	if (is_a($node,'Blanknode'))
722	$res->setIsAnon(true);
723
724	return $res;
725	}
726	}
727
728	/**
729	* converts a ResResource, ResProperty, or ResLiteral into a Resource, Blanknode, or Literal
730	*
731	* @param object ResNode $resNode
732	* @return object Node
733	* @access private
734	* @throws phpErrpr
735	*/
736	function _resNode2Node($resNode)
737	{
738	if (is_a($resNode,'ResResource'))
739	{
740	if ($resNode->getIsAnon())
741	{
742	$return=new BlankNode($resNode->getURI());
743	} else
744	{
745	$return=new Resource($resNode->getURI());
746	}
747	return $return;
748	}
749
750	if (is_a($resNode,'ResLiteral'))
751	{
752	$literal=new Literal($resNode->getLabel(),$resNode->getLanguage());
753	if ($resNode->getDatatype() != null)
754	$literal->setDatatype($resNode->getDatatype());
755	return $literal;
756	}
757	}
758
759	/**
760	* Set a base URI for the MemModel.
761	* Affects creating of new resources and serialization syntax.
762	* If the URI doesn't end with # : or /, then a # is added to the URI.
763	* @param string $uri
764	* @access public
765	*/
766	function setBaseURI($uri)
767	{
768	$this->model->setBaseURI($uri);
769	}
770
771	/**
772	* Writes the RDF serialization of the MemModel as HTML table.
773	*
774	* @access public
775	* @return string
776	*/
777	function writeRdfToString()
778	{
779	return $this->model->writeRdfToString();
780	}
781
782	/**
783	* Perform an RDQL query on this MemModel.
784	* This method returns an associative array of variable bindings.
785	* The values of the query variables can either be RAP's objects (instances of Node)
786	* if $returnNodes set to TRUE, or their string serialization.
787	*
788	* @access public
789	* @param string $queryString
790	* @param boolean $returnNodes
791	* @return array [][?VARNAME] = object Node (if $returnNodes = TRUE)
792	* OR array [][?VARNAME] = string
793	*
794	*/
795	function & rdqlQuery($queryString, $returnNodes = TRUE)
796	{
797	$ret = $this->model->rdqlQuery($queryString, $returnNodes);
798	return $ret;
799	}
800
801	/**
802	* Perform an RDQL query on this MemModel.
803	* This method returns an RdqlResultIterator of variable bindings.
804	* The values of the query variables can either be RAP's objects (instances of Node)
805	* if $returnNodes set to TRUE, or their string serialization.
806	*
807	* @access public
808	* @param string $queryString
809	* @param boolean $returnNodes
810	* @return object RdqlResultIterator = with values as object Node (if $returnNodes = TRUE)
811	* OR object RdqlResultIterator = with values as strings if (if $returnNodes = FALSE)
812	*
813	*/
814	function rdqlQueryAsIterator($queryString, $returnNodes = TRUE)
815	{
816	return $this->model->rdqlQueryAsIterator($queryString, $returnNodes);
817	}
818
819
820	/**
821	* Returns the models namespaces.
822	*
823	* @author Tobias Gauß <tobias.gauss@web.de>
824	* @access public
825	* @return Array
826	*/
827	function getParsedNamespaces(){
828	return $this->model->getParsedNamespaces();
829	}
830
831
832
833	/**
834	* Adds the namespaces to the model. This method is called by
835	* the parser. !!!! addParsedNamespaces() not overwrites manual
836	* added namespaces in the model !!!!
837	*
838	* @author Tobias Gauß <tobias.gauss@web.de>
839	* @access public
840	* @param Array $newNs
841	*/
842	function addParsedNamespaces($newNs){
843	$this->model->addParsedNamespaces($newNs);
844	}
845
846
847	/**
848	* Adds a namespace and prefix to the model.
849	*
850	* @author Tobias Gauß <tobias.gauss@web.de>
851	* @access public
852	* @param String $prefix, String $nmsp
853	*/
854	function addNamespace($prefix, $namespace){
855	$this->model->addNamespace($prefix, $namespace);
856	}
857
858	/**
859	* removes a single namespace from the model
860	*
861	* @author Tobias Gauß <tobias.gauss@web.de>
862	* @access public
863	* @param String $nmsp
864	*/
865	function removeNamespace($nmsp){
866	return $this->model->removeNamespace($nmsp);
867	}
868
869
870
871
872
873
874	}
875
876	?>

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