Ich arbeite an einem Projekt, bei dem mehrere Ontologien in einer TDB gespeichert werden müssen. Ich habe versucht, es auf meine eigene Weise zu tun, aber es hat nicht funktioniert. Helfen Sie mir bitte. Wenn Sie wissen, wie man TDB benutzt, können Sie den Code posten, der auf meinen Code angewendet wird?

String directory = "./111";
Dataset dataset = TDBFactory.createDataset(directory);
Model tdb = dataset.getNamedModel("test1");
String source = "file:///e:/Course.rdf";
System.out.println(tdb.toString());
tdb.commit();
tdb.close();
String source2 = "file:///e:/lyx/resouces/Course1.rdf";
Model tdb2 = dataset.getNamedModel("test2");//see error1 information
FileManager.get().readModel( tdb2, source2);
System.out.println(tdb2.toString());//see error2 information
tdb2.commit();
tdb2.close();
dataset.close();

Aber ich habe einen Fehler bekommen: Fehler1 Information:

ERROR [main] (ObjectFileStorage.java:345) - ObjectFileStorage.read[nodes](25148)[filesize=30366][file.size()=30366]: Impossibly large object : 879060026 bytes > filesize-(loc+SizeOfInt)=5214

Fehler2 Information:

Exception in thread "main" com.hp.hpl.jena.tdb.base.file.FileException: ObjectFileStorage.read[nodes](30397)[filesize=33022][file.size()=33022]: Impossibly large object : 1711276032 bytes > filesize-(loc+SizeOfInt)=2621
at com.hp.hpl.jena.tdb.base.objectfile.ObjectFileStorage.read(ObjectFileStorage.java:346)
at com.hp.hpl.jena.tdb.lib.NodeLib.fetchDecode(NodeLib.java:78)
at com.hp.hpl.jena.tdb.nodetable.NodeTableNative.readNodeFromTable(NodeTableNative.java:178)
at com.hp.hpl.jena.tdb.nodetable.NodeTableNative._retrieveNodeByNodeId(NodeTableNative.java:103)
at com.hp.hpl.jena.tdb.nodetable.NodeTableNative.getNodeForNodeId(NodeTableNative.java:74)
at com.hp.hpl.jena.tdb.nodetable.NodeTableCache._retrieveNodeByNodeId(NodeTableCache.java:103)
at com.hp.hpl.jena.tdb.nodetable.NodeTableCache.getNodeForNodeId(NodeTableCache.java:74)
at com.hp.hpl.jena.tdb.nodetable.NodeTableWrapper.getNodeForNodeId(NodeTableWrapper.java:55)
at com.hp.hpl.jena.tdb.nodetable.NodeTableInline.getNodeForNodeId(NodeTableInline.java:67)
at com.hp.hpl.jena.tdb.lib.TupleLib.quad(TupleLib.java:161)
at com.hp.hpl.jena.tdb.lib.TupleLib.quad(TupleLib.java:153)
at com.hp.hpl.jena.tdb.lib.TupleLib.access$100(TupleLib.java:45)
at com.hp.hpl.jena.tdb.lib.TupleLib$4.convert(TupleLib.java:87)
at com.hp.hpl.jena.tdb.lib.TupleLib$4.convert(TupleLib.java:83)
at org.apache.jena.atlas.iterator.Iter$4.next(Iter.java:317)
at org.apache.jena.atlas.iterator.Iter$4.next(Iter.java:317)
at org.apache.jena.atlas.iterator.Iter.next(Iter.java:915)
at com.hp.hpl.jena.util.iterator.WrappedIterator.next(WrappedIterator.java:94)
at com.hp.hpl.jena.graph.impl.GraphBase.toString(GraphBase.java:422)
at com.hp.hpl.jena.graph.impl.GraphBase.toString(GraphBase.java:391)
at java.lang.String.valueOf(Unknown Source)
at java.lang.StringBuilder.append(Unknown Source)
at com.hp.hpl.jena.rdf.model.impl.ModelCom.toString(ModelCom.java:1498)
at CreateTDB.main(CreateTDB.java:60)