public static BeanQuery<Map<String, Object>> select(String selectString) {
    return new BeanQuery<Map<String, Object>>(new StringSelector(selectString));
  }
public static BeanQuery < Map < String , Object > > select ( String selectString ) { return new BeanQuery < Map < String , Object > > ( new StringSelector ( selectString ) ) ; }
Create a BeanQuery instance with select String, the select String is in
format "propertyName[ as alias][,propertyName[ as alias]]". For example:<br>
<code>BeanQuery beanQuery=select("name, price as p, address.officeAddress as address");</code>
When executing the BeanQuery instance created in above code will
return a list of map with 3 keys:[name,p,address].