@SuppressWarnings("unchecked")
protected void setDummyEdges() {
int nodeCount = nodeList.size();
// if node count is only one then we don't have to worry about whether
// the nodes are connected
if (nodeCount > 1) {
NodeList candidateList = new NodeList();
for (Iterator<Node> iter = nodeList.iterator(); iter.hasNext(); ) {
Node sourceNode = iter.next();
// we will need to set up a dummy relationship for any node not
// in one already
if (sourceNode.outgoing.size() == 0 && sourceNode.incoming.size() == 0) {
candidateList.add(sourceNode);
sourceNode.setRowConstraint(2);
} else {
sourceNode.setRowConstraint(1);
}
}
if (candidateList.size() > 1) {
int index = 0;
while (index < candidateList.size() - 1) {
Node sourceNode = candidateList.getNode(index++);
Node targetNode = candidateList.getNode(index);
newDummyEdge(targetNode, sourceNode);
}
}
}
}