Hi there
I have used UnionMGraph to combine a SimpleMGraph with the contentgraph like
the following:
I have a Resource aNode in the contentgraph which "has" the triple
(aNode,PAGEMANAGER.menu, aMenuSection) now I create a GraphNode
new GraphNode(aNode, new UnionMGraph(new SimpleMGraph(), contentGraph) and add
to this graph node the above triple (aNode,PAGEMANAGER.menu, aMenuSection) again
When I iterate over predicate the PAGEMANAGER.menu in a ssp it returns
aMenuSection twice. I think it should appear only once.
So, right now I have to check before I add the triple again.Here the code
snippet from the above scenario:
MGraph contentGraph = cgProvider.getContentGraph();
SimpleMGraph result = new SimpleMGraph();
node = new GraphNode(uri, new UnionMGraph(result,
contentGraph));
Iterator<Triple> menuSections =
contentGraph.filter(null, RDF.type, PAGEMANAGER.Menu);
while(menuSections.hasNext()) {
Resource menuSection =
menuSections.next().getSubject();
Triple triple = new TripleImpl((NonLiteral)
node.getNode(),PAGEMANAGER.menu, menuSection);
if(!node.getGraph().contains(triple)){
result.add(triple);
}
}
From my point of view a UnionMGraph should merge 2 triples which are
identically based on the "set theory".
Cheers
Tsuy
