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Re: [january-dev] FW: January: Streams for slicing after lunch
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Perhaps a little off-topic, but AFAIK 3.8.2 functions correctly with
Java 8, the problem is the BREE in the January manifest files? i.e.
you get errors like this:
!MESSAGE Missing required capability Require-Capability: osgi.ee;
filter="(&(osgi.ee=JavaSE)(version=1.8))".
If so, you can patch org.eclipse.osgi to include the 1.8 profile. If
you develop in newer eclipse that will allow you to target eclipse 3.8
and use bundles for Java 8. See this answer
http://stackoverflow.com/a/29717036/2796832 for more info.
(PS it makes me sad to launch old Eclipse because despite all the
other improvements in e4, 3.8 really feels faster)
YMMV but I HTH,
Jonah
~~~
Jonah Graham
Kichwa Coders Ltd.
www.kichwacoders.com
On 5 April 2017 at 16:52, Ian Mayo <ian@xxxxxxxxxxxxx> wrote:
> Matt, I personally value January remaining at 1.7, since I'm still
> using Eclipse 3.8.2 (for rendering performance & UI consistency
> reasons).
>
> Each year I try/review the 4.x release, and look forward to the time
> when I can move over, and adopt the new Java 1.8 features.
>
> Ian.
>
> On 5 April 2017 at 15:58, <Matt.Gerring@xxxxxxxxxxxxx> wrote:
>> Hello,
>>
>>
>>
>> I proposed a PR (https://github.com/eclipse/january/pull/155 which should
>> not be merged as API is not nice enough) to add stream support for slicing
>> lazy datasets. However Peter and Jake have proposed that I add this support
>> to dawnsci because of the following reasons:
>>
>> 1. I would have to change January to 1.8 from 1.7
>>
>> 2. I could use Jake’s SliceViewIterator if the functionality was in
>> dawnsci.
>>
>> 3. [The eventual API should probably be a stream of ILazyDataset and
>> work with .parallel()]
>>
>>
>>
>> I am inclined to do what they say because it is the path of least
>> resistance. My question is: Does anyone actually want slice streams in
>> January? I would have thought them the most useful feature slice sliced
>> bread because everything for me seems to involve iterating images out of nD
>> data. So the lambdas would truncate everyone’s code nicely.
>>
>>
>>
>> What are your thoughts and requirements?
>>
>>
>>
>> Matt
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