JPA Annotation

FieldResult

Implemented Interfaces:
Annotation
Used in conjunction with the EntityResult annotation to map columns specified in the SELECT list of a SQL query to the properties or fields of an entity class.

Example:

 {@snippet :
 Query q = em.createNativeQuery(
     "SELECT o.id AS order_id, " +
         "o.quantity AS order_quantity, " +
         "o.item AS order_item, " +
       "FROM Order o, Item i " +
       "WHERE (order_quantity > 25) AND (order_item = i.id)",
     "OrderResults");

 @SqlResultSetMapping(
     name = "OrderResults",
     entities = {
         @EntityResult(
             entityClass = com.acme.Order.class,
             fields = {
See Also:
EntityResult
SqlResultSetMapping
Since:
JPA 1.0

Public Annotation Attributes

String column default null
Name of the column in the SELECT clause - i.e., column aliases, if applicable.
Since:
JPA 1.0
String name default null
Name of the persistent field or property of the class.
Since:
JPA 1.0