+
+ /**
+ * Answers true if the feature's start/end values represent two related
+ * positions, rather than ends of a range. Such features may be visualised or
+ * reported differently to features on a range.
+ */
+ @Override
+ public boolean isContactFeature()
+ {
+ // TODO abstract one day to a FeatureType class
+ if ("disulfide bond".equalsIgnoreCase(type)
+ || "disulphide bond".equalsIgnoreCase(type))
+ {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Answers true if the sequence has zero start and end position
+ *
+ * @return
+ */
+ public boolean isNonPositional()
+ {
+ return begin == 0 && end == 0;
+ }