public interface PriorityOrdered extends Ordered
Orderedinterface, expressing a priority ordering:
PriorityOrderedobjects are always applied before plain
Orderedobjects regardless of their order values.
When sorting a set of
objects and plain
Ordered objects are effectively treated as
two separate subsets, with the set of
PriorityOrdered objects preceding
the set of plain
Ordered objects and with relative
ordering applied within those subsets.
This is primarily a special-purpose interface, used within the framework
itself for objects where it is particularly important to recognize
prioritized objects first, potentially without even obtaining the
remaining objects. A typical example: prioritized post-processors in a Spring
PriorityOrdered post-processor beans are initialized in
a special phase, ahead of other post-processor beans. This subtly
affects their autowiring behavior: they will only be autowired against
beans which do not require eager initialization for type matching.