/*
* (non-Javadoc)
* @see de.hpi.bpt.hypergraph.abs.IDirectedHyperGraph#addEdge(java.util.Collection, java.util.Collection)
*/
@SuppressWarnings("unchecked")
public E addEdge(Collection<V> ss, Collection<V> ts) {
if (ss == null || ts == null) return null;
E e = (E) new AbstractDirectedHyperEdge<V>(this);
e.addSourceAndTagetVertices(ss, ts);
return e;
}
/*
* (non-Javadoc)
* @see de.hpi.bpt.hypergraph.abs.IDirectedHyperGraph#addEdge(de.hpi.bpt.hypergraph.abs.IVertex, de.hpi.bpt.hypergraph.abs.IVertex)
*/
@SuppressWarnings("unchecked")
public E addEdge(V s, V t) {
if (s == null || t == null) return null;
E e = (E) new AbstractDirectedHyperEdge<V>(this);
Collection<V> ss = new ArrayList<V>();
ss.add(s);
Collection<V> ts = new ArrayList<V>();
ts.add(t);
e.addSourceAndTagetVertices(ss, ts);
return e;
}
