Annotation Interface Order
@Orderdefines the sort order for an annotated component.
value() is optional and represents an order value as defined in the
Ordered interface. Lower values have higher priority. The default value is
Ordered.LOWEST_PRECEDENCE, indicating the lowest priority (losing to any
other specified order value).
NOTE: Since Spring 4.0, annotation-based ordering is supported for many
kinds of components in Spring, even for collection injection where the order values
of the target components are taken into account (either from their target class or
@Bean method). While such order values may influence priorities
at injection points, please be aware that they do not influence singleton startup
order which is an orthogonal concern determined by dependency relationships and
@DependsOn declarations (influencing a runtime-determined dependency graph).
Since Spring 4.1, the standard
can be used as a drop-in replacement for this annotation in ordering scenarios.
@Priority may have additional semantics when a single element
has to be picked (see
Alternatively, order values may also be determined on a per-instance basis
Ordered interface, allowing for configuration-determined
instance values instead of hard-coded values attached to a particular class.
Consult the javadoc for
OrderComparator for details on the sort semantics for non-ordered objects.
- Rod Johnson, Juergen Hoeller
- See Also:
Optional Element SummaryModifier and TypeOptional ElementDescription
intThe order value.
valueint valueThe order value.
- See Also: