File watching on Oracle JDK on Mac OS X and other platforms

[Christopher Brown]

Thanks Dan and Alan,

I found my answer concerning Windows, Linux, and Solaris here (comment from
Alan):
http://java.dzone.com/news/how-watch-file-system-changes

SensitivityWatchEventModifier does look like what I was looking for.  Is
JDK9 the target for the native Mac implementation?



On 2 November 2013 08:50, Alan Bateman <Alan.Bateman at oracle.com> wrote:

> On 01/11/2013 16:33, Christopher Brown wrote:
>
>> Hello,
>>
>> As I understand it, the file watcher service introduced with JDK 7 uses
>> native (near real-time) notifications on Windows and Linux, but polling on
>> Mac OS X.
>>
>> First off, is this correct?
>>
>> Second, if it is, what is the polling interval on Mac OS X (and can it be
>> configured)?
>>
>>  As Dan mentioned, we do need to add a native implementation for Mac at
> some point (the original Mac port didn't have anything and the polling
> implementation is simple implementation when getting a port going or where
> the operating system doesn't have a facility).
>
> As regards configuring the polling interval then it can be done on a per
> watched directory basis via a JDK-specific WatchEvent.Modifier, see
> com.sun.nio.file.**SensitivityWatchEventModifier.
>
> -Alan.
>