+ protected abstract UUID generatedUUIDForNode();
+
+ public InstanceIdentifier<Node> getNodeIdentifier() {
+ final InstanceIdentifier<Node> nodeIdent = InstanceIdentifier.create(Nodes.class)
+ .child(Node.class, new NodeKey(nodeId));
+ return nodeIdent;
+ }
+
+ }
+
+
+ class Pair<L,R> {
+
+ private final L left;
+ private final R right;
+
+ public Pair(L left, R right) {
+ this.left = left;
+ this.right = right;
+ }
+
+ public L getLeft() { return left; }
+ public R getRight() { return right; }
+
+ @Override
+ public int hashCode() { return left.hashCode() ^ right.hashCode(); }
+
+ @Override
+ public boolean equals(Object o) {
+ if (!(o instanceof Pair)) return false;
+ Pair pairo = (Pair) o;
+ return this.left.equals(pairo.getLeft()) &&
+ this.right.equals(pairo.getRight());
+ }
+