| 1 | <?php
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| 2 | // ----------------------------------------------------------------------------------
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| 3 | // Class: Dataset
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| 4 | // ----------------------------------------------------------------------------------
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| 5 |
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| 6 | /**
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| 7 | * Dataset implementation.
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| 8 | * Superclass of datasetMem and datasetDb which contains shared functionality.
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| 9 | *
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| 10 | * @version $Id$
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| 11 | * @author Daniel Westphal (http://www.d-westphal.de)
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| 12 | * @author Chris Bizer <chris@bizer.de>
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| 13 | *
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| 14 | * @package dataset
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| 15 | * @access public
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| 16 | **/
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| 17 |
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| 18 | class Dataset
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| 19 | {
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| 20 | /**
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| 21 | * Load a Dataset from a File
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| 22 | *
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| 23 | * @param string
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| 24 | * @access public
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| 25 | */
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| 26 | function loadFromFile($file)
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| 27 | {
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| 28 | $parser= new TriXParser($this);
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| 29 | $parser->parseFile($file);
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| 30 | }
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| 31 |
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| 32 | /**
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| 33 | * Load a Datset from a string
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| 34 | *
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| 35 | * @param string
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| 36 | * @access public
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| 37 | */
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| 38 | function loadFromString($string)
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| 39 | {
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| 40 | $parser= new TriXParser($this);
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| 41 | $parser->parseString($string);
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| 42 | }
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| 43 |
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| 44 | /**
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| 45 | * Serialize the Dataset to File
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| 46 | *
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| 47 | * @param string
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| 48 | * @access public
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| 49 | */
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| 50 | function serializeToFile($fileName)
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| 51 | {
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| 52 | $serializer= new TriXSerializer($this);
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| 53 | $serializer->serializeToFile($fileName);
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| 54 | }
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| 55 |
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| 56 | /**
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| 57 | * Serialize the Dataset to string
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| 58 | *
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| 59 | * @return string
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| 60 | * @access public
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| 61 | */
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| 62 | function serializeToString()
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| 63 | {
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| 64 | $serializer= new TriXSerializer($this);
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| 65 | return $serializer->serializeToString();
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| 66 | }
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| 67 |
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| 68 | /**
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| 69 | * Performs a SPARQL query against an RDF Dataset.
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| 70 | * The result can be retrived in SPARQL Query Results XML Format or
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| 71 | * as an array containing the variables an their bindings.
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| 72 | *
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| 73 | * @param String $query the sparql query string
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| 74 | * @param String $resultform the result form ('xml' for SPARQL Query Results XML Format)
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| 75 | * @return String/array
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| 76 | */
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| 77 | function sparqlQuery($query,$resultform = false){
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| 78 | include_once(RDFAPI_INCLUDE_DIR.PACKAGE_SPARQL);
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| 79 | $parser = new SparqlParser();
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| 80 | $q = $parser->parse($query);
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| 81 |
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| 82 | $sparqlEngine = SparqlEngine::getInstance();
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| 83 | $eng = $sparqlEngine->factory();
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| 84 | return $eng->queryModel($this,$q,$resultform);
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| 85 | }
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| 86 |
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| 87 |
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| 88 |
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| 89 | }
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| 90 | ?> |
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