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Java EE 5 SDK | ||||||||
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@Target(value={})
@Retention(value=RUNTIME)
public @interface FieldResultIs 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")})
})
| Required Element Summary | |
|---|---|
String |
column
Name of the column in the SELECT clause - i.e., column aliases, if applicable. |
String |
name
Name of the persistent field or property of the class. |
| Element Detail |
|---|
public abstract String name
public abstract String column
|
Java EE 5 SDK | ||||||||
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| SUMMARY: REQUIRED | OPTIONAL | DETAIL: ELEMENT | ||||||||
Copyright 2006 Sun Microsystems, Inc. All rights reserved.