public static XmlElement generateSetsSelective(List<IntrospectedColumn> columns, String prefix) {
        return generateCommColumnsSelective(columns, prefix, false, 3);
    }
public static XmlElement generateSetsSelective(List<IntrospectedColumn> columns, String prefix) {
        return generateCommColumnsSelective(columns, prefix, false, 3);
    }
public static XmlElement generateSetsSelective ( List < IntrospectedColumn > columns , String prefix ) { return generateCommColumnsSelective ( columns , prefix , false , 3 ) ; }
生成sets Selective Ele
@param columns
@param prefix
@return
生成sets Selective Ele