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Difference between revisions of "EclipseLink/Examples/JPA/PessimisticLocking"
< EclipseLink | Examples | JPA
(New page: EclipseLink allows users the option of using pessimistic locking on their queries. This is done through the use of a query hint. == Via Annotations == <code><pre> @Entity @Table(name="JPA...) |
(→Via Annotations) |
||
| Line 8: | Line 8: | ||
name="findEmployeeByPK", | name="findEmployeeByPK", | ||
query="SELECT OBJECT(employee) FROM Employee employee WHERE employee.id = :id"), | query="SELECT OBJECT(employee) FROM Employee employee WHERE employee.id = :id"), | ||
| − | hints={@QueryHint(name=EclipseLinkQueryHints.PESSIMISTIC_LOCK, value=EclipseLinkQueryHints.PESSIMISTIC_LOCK) | + | hints={ |
| + | @QueryHint( | ||
| + | name=EclipseLinkQueryHints.PESSIMISTIC_LOCK, | ||
| + | value=EclipseLinkQueryHints.PESSIMISTIC_LOCK) | ||
| + | } | ||
) | ) | ||
public class Employee implements Serializable { | public class Employee implements Serializable { | ||
Revision as of 15:21, 15 October 2007
EclipseLink allows users the option of using pessimistic locking on their queries. This is done through the use of a query hint.
Via Annotations
@Entity
@Table(name="JPA_EMPLOYEE")
@NamedQuery(
name="findEmployeeByPK",
query="SELECT OBJECT(employee) FROM Employee employee WHERE employee.id = :id"),
hints={
@QueryHint(
name=EclipseLinkQueryHints.PESSIMISTIC_LOCK,
value=EclipseLinkQueryHints.PESSIMISTIC_LOCK)
}
)
public class Employee implements Serializable {
...
}