[jira] [Updated] (LUCENENET-480) Investigate what needs to happen to make both .NET 3.5 and 4.0 builds possible

["Christopher Currens (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/LUCENENET-480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Currens updated LUCENENET-480:
------------------------------------------

    Assignee: Christopher Currens

I think this can be done for the release.  Right now, all that needs to be done is creating the build configurations for 3.5 (or a tool to create them) and update the build/release scripts.

Also, if there's time, making Contrib.Spatial work in 3.5 would be nice.  There are a few parts that rely on the TPL and Concurrent collections that aren't present in 3.5.  We can get a lot of the behavior to work, at the expense of slightly slower collections.  A dictionary with locks will, in nearly all cases, be several hundred-thousand milliseconds slower in just about all operations.  If this is ported to 3.5, it should probably be mentioned and recommended that .NET4 be used.
                
> Investigate what needs to happen to make both .NET 3.5 and 4.0 builds possible
> ------------------------------------------------------------------------------
>
>                 Key: LUCENENET-480
>                 URL: https://issues.apache.org/jira/browse/LUCENENET-480
>             Project: Lucene.Net
>          Issue Type: Task
>          Components: Lucene.Net Contrib, Lucene.Net Core, Lucene.Net Demo, Lucene.Net Test
>    Affects Versions: Lucene.Net 2.9.4, Lucene.Net 2.9.4g, Lucene.Net 3.0.3
>            Reporter: Christopher Currens
>            Assignee: Christopher Currens
>         Attachments: SortedSet.cs
>
>
> We need to investigate what needs to be done with the source to be able to support both a .NET 3.5 and 4.0 build.  There was some concern from at least one member of the community ([see here|http://mail-archives.apache.org/mod_mbox/lucene-lucene-net-dev/201202.mbox/%3C004b01cce111$871f4990$955ddcb0$@fr%3E]) that we've alienated some of our user base by making such a heavy jump from 2.0 to 4.0.  There are major benefits to using 4.0 over the 2.0-based runtimes, specifically FAR superior memory management, particularly with the LOH, where Lucene.NET has had major trouble with in the past.
> Based on what has been done with Lucene.NET 3.0.3, we can't (easily) drop .NET 3.5/3.0 libraries and go back to 2.0.  HashSet<T> and ISet<T> is used extensively in the code, that would be a major blocker to get done.  I suppose it could be possible, but there hasn't been a whole lot of talk about what runtimes we intend to support.  The big change between lucene 2.x and 3.x for java was also a change in runtimes, that allowed generics and enums to be used in the base code.  We have a similar situation with the API (it's substantially different, with the addition of properties alone) for this next version of Lucene.NET, so I think it's reasonable to at least make a permanent move from 2.0 to 3.5, though that's only my opinion, hasn't been discussed with the committers.
> It seems that supporting 3.5 and 4.0 should be fairly easy, and is a decent compromise in supporting both a 2.0 and 4.0 runtime.  At the very least, we should try our best to support it.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira