在javax.jdo.Query中限制结果数

import javax.jdo.PersistenceManager;
import javax.jdo.Query;

public class QueryExample {
    public static void main(String[] args) {
        PersistenceManager pm = PMF.get().getPersistenceManager();
        Query query = pm.newQuery(YourEntity.class);
        query.setFilter("yourFilterCondition");
        query.setRange(0, 10); // 限制结果数为10
        List<YourEntity> result = (List<YourEntity>) query.execute();
        pm.close();
    }
}