javax.persistence

Annotation Type FieldResult

@Target(value={})
@Retention(value=RUNTIME)
public @interface FieldResult

Is used to map the columns specified in the SELECT list of the query to the properties or fields of the entity class.

 Example:
   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={
               @FieldResult(name="id", column="order_id"),
               @FieldResult(name="quantity", column="order_quantity"),
               @FieldResult(name="item", column="order_item")})
       })
 

Since:

Java Persistence 1.0

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
java.lang.String	column Name of the column in the SELECT clause - i.e., column aliases, if applicable.
java.lang.String	name Name of the persistent field or property of the class.

Element Detail

name

public abstract java.lang.String name

Name of the persistent field or property of the class.

column

public abstract java.lang.String column

Name of the column in the SELECT clause - i.e., column aliases, if applicable.