+
+ /**
+ * @author Bob Hanson 2019.07.30
+ *
+ * get a 4-byte color, with caching
+ *
+ */
+ public int getColor(int i);
+
+ /**
+ * @author Bob Hanson 2019.07.30
+ *
+ * set a 4-byte color, with caching
+ *
+ */
+ public int setColor(int i, int argb);
+
+ /**
+ * @author Bob Hanson 2019.07.30
+ *
+ * allows resetting the color cache
+ *
+ */
+ public void resetColors();
+
+ /**
+ * Answers a (possibly empty) list of features of the specified type that
+ * overlap the specified column position. If parameter {@code result} is not
+ * null, features are appended to it and the (possibly extended) list is
+ * returned.
+ */
+ List<SequenceFeature> findFeatures(int column, String type,
+ List<SequenceFeature> result);
+
+ /**
+ * Answers true if this store contains at least one feature, else false
+ *
+ * @return
+ */
+ public boolean hasFeatures(String type);
+