Interface WatchEvent<T>
- Type Parameters:
T- The type of the context object associated with the event
public interface WatchEvent<T>
An event or a repeated event for an object that is registered with a
WatchService.
An event is classified by its kind and has a count to indicate the number of times that the event has been
observed. This allows for efficient representation of repeated events. The
context method returns any context associated with
the event. In the case of a repeated event then the context is the same for
all events.
Watch events are immutable and safe for use by multiple concurrent threads.
- Since:
- 1.7
-
Nested Class Summary
Nested ClassesModifier and TypeInterfaceDescriptionstatic interfaceAn event kind, for the purposes of identification.static interfaceAn event modifier that qualifies how aWatchableis registered with aWatchService. -
Method Summary
-
Method Details
-
kind
-
count
int count()Returns the event count. If the event count is greater than1then this is a repeated event.- Returns:
- the event count
-
context
T context()Returns the context for the event.In the case of
ENTRY_CREATE,ENTRY_DELETE, andENTRY_MODIFYevents the context is aPaththat is therelativepath between the directory registered with the watch service, and the entry that is created, deleted, or modified.- Returns:
- the event context; may be
null
-