/** Default, concrete graph (either generated or explicitly named) -- not triple-in-quad*/ public static boolean isDefaultGraph(Node node) { return isDefaultGraphGenerated(node) || isDefaultGraphExplicit(node) ; }
/** Default, concrete graph via generated URI (not explicitly, named) */ public boolean isDefaultGraphExplicit() { return isDefaultGraphExplicit(getGraph()) ; }
@Override // Empty graphs don't "exist" public boolean containsGraph(Node graphNode) { checkNotClosed() ; if ( Quad.isDefaultGraphExplicit(graphNode) || Quad.isUnionGraph(graphNode) ) return true ; return _containsGraph(graphNode) ; }
if ( quad.isDefaultGraphExplicit() )