public Query newQuery (); public Query newQuery (Class candidateClass); public Query newQuery (Extent candidates); public Query newQuery (Class candidateClass, Collection candidates); public Query newQuery (Class candidateClass, String filter); public Query newQuery (Class candidateClass, Collection candidates, String filter); public Query newQuery (Extent candidates, String filter); public Query newQuery (String language, Object serialized); public Query newQuery (Object serialized);
Query objects are used to find persistent objects matching certain criteria. You can obtain a Query instances through one of the PersistenceManager's several newQuery methods. See the chapter covering the Query interface and the PersistenceManager Javadoc for details.