/* say if a link already exist between to node in the graph
* (usefull for avoid duplicated links */
private Boolean linkAlreadyExist(Node n1, Node n2) {
for (Link l : links) {
if (l.getSource().equals(n1) && l.getDestination().equals(n2)) {
return true;
}
}
return false;
}
protected boolean contains(Collection links, Object o) {
for (Iterator iter = links.iterator(); iter.hasNext(); ) {
Link link = (Link) iter.next();
if (link.getSource() == o || link.getTarget() == o) {
return true;
}
}
return false;
}
public static PVLink create(Link link) {
return create(link.getSource(), link.getTarget(), link.getValue());
}
