morphia

import
 java.util.regex.Pattern;
import
 com.google.code.morphia.query.Query;
...
Datastore ds；
Query query = ds.createQuery(Person.class
);
Pattern pattern = Pattern.compile("^.*"
 + personName+ 
".*$"
, 
// as SQL:  like " '%" + personName + "%' "
 Pattern.CASE_INSENSITIVE);
query.filter("name"
, pattern);
List<Persion> persons = query.asList();