javax.persistence.FieldResult - JPA annotation
javax.persistence
Annotation FieldResult
- Target:
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:
- JPA 1.0
String column
Name of the column in the SELECT clause - i.e., column aliases, if applicable.
- Since:
- JPA 1.0
String name
Name of the persistent field or property of the class.
- Since:
- JPA 1.0
