final Date a = new Date();
this.rootNode.sendMessageDebug(new StartOfEvaluationMessage(), debugstep);
for(final URILiteral in: this.defaultGraphs) {
CommonCoreQueryEvaluator.readTriples(this.type, in.openStream(), (TripleConsumer) this.rootNode);
}
this.rootNode.sendMessageDebug(new EndOfEvaluationMessage(), debugstep);
return ((new Date()).getTime() - a.getTime());
}