return comparator;
}
+ /**
+ * Optional initialization method for overriding implementations.
+ *
+ * @param g
+ * @param r1 root 1
+ * @param r2 root 2
+ */
+ public void initialize(ReadGraph g, Resource r1, Resource r2) throws DatabaseException {
+
+ }
/**
* Compares two resources and returns numeric value of differences, minimum value is 1.