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POJava - Jena API - Get an attribute of another class
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  1. POJava - Jena API - Get an attribute of another class
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    copied!<p>I'm using java and the Jena API. I have a class Marriage which has 3 Object Properties called "hasHusband", "Haswife" and "dateOfMarriage". The first two are associated with a class Person which has the datatype properties like first name, last name, date of birth...</p> <p>I'd like to retrieve the wife's first name and the husband's first name. Could you explain me how can I do this?</p> <p>Here is the relevant part of my rdf file:</p> <pre><code>(...) &lt;j.0:FAMmariage rdf:about=http://www.fam.com/FAM#BrunoCatherine&gt; &lt;j.0:FAMaDateMariage&gt;25/07/2011&lt;/j.0:FAMaDateMariage&gt; &lt;j.0:FAMhasWife&gt; &lt;rdf:Description rdf:about="http://www.fam.com/FAM#Catherine20/03/1982"&gt; &lt;j.0:FAMDateOfBirth&gt;20/03/1980&lt;/j.0:FAMDateOfBirth&gt; &lt;j.0:FAMHasName&gt;Gomez&lt;/j.0:FAMHasName&gt; &lt;j.0:FAMHasFirstName&gt;Catherine&lt;/j.0:FAMHasFirstName&gt; &lt;/rdf:Description&gt; &lt;/j.0:FAMHasWife&gt; &lt;j.0:FAMHusband&gt; &lt;rdf:Description rdf:about="http://www.fam.com/FAM# Bruno15/06/1980 "&gt; &lt;j.0:FAMaDateOfBirth&gt;15/06/1980 &lt;/j.0:FAMDateOfBirth&gt; &lt;j.0:FAMHasName&gt;Jeandet &lt;/j.0:FAMHasName&gt; &lt;j.0:FAMHasFirstName&gt;Bruno&lt;/j.0:FAMHasFirstName&gt; &lt;/rdf:Description&gt; &lt;/j.0:FAMHusband&gt; &lt;/j.0:FAMmariage&gt; (...) </code></pre> <p>Thanks</p> <p><strong>EDITED</strong> Through the code below I can get the hasWife object property. What should I add to get the firstName datatypeproperty?</p> <pre><code>//Object Property hasWife StmtIterator iter = onto.model.listStatements(null,onto.hasWife,(RDFNode)null); while (iter.hasNext()) { Statement stmt = iter.nextStatement(); System.out.println(stmt.getObject().toString()); } </code></pre>
 

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