+\r
+ /**\r
+ * Find out more info about the source.\r
+ * \r
+ * @param dbsourceproperty\r
+ * - one of the database reference source properties in\r
+ * jalview.datamodel.DBRefSource\r
+ * @return true if the source has this property\r
+ */\r
+ public boolean isA(Object dbsourceproperty);\r