public Vector<PDBEntry> getAllPDBEntries();
/**
- * add entry to the vector of PDBIds, if it isn't in the list already
+ * add entry to the *normalised* vector of PDBIds.
+ *
+ * If a PDBEntry is passed with an entry.getID() string, as one already in the
+ * list, or one is added that appears to be the same but has a chain ID
+ * appended, then the existing PDBEntry will be updated with the new
+ * attributes.
*
* @param entry
*/