EDIT

public interface ITaxonDao extends IIdentifiableDao<TaxonBase>, ITitledDao<TaxonBase> {

	/**

	 * Suggest a query that will return hits based upon an existing lucene query string (that is presumably misspelt and returns no hits)

	 * Used to implement "did you mean?"-type functionality using the lucene spellchecker.

	 * 

	 * @param string Query string to check

	 * @return a suggested query string that will return hits or null if no such alternative spelling can be found.

	 */

	public String suggestQuery(String string);

	/**

	 * Removes all TaxonBase entities from the index

	 */

	public void purgeIndex();

	/**

	 * Index all TaxonBase entities currenly in the database (useful in concert with purgeIndex() to (re-)create

	 * indexes or in the  case of corrupt indexes / mismatch between 

	 * the database and the free-text indices) 

	 */

	public void rebuildIndex();

	/**

	 * Calls optimize on the relevant index (useful periodically to increase response times on the free-text search)

	 */

	public void optimizeIndex();