I went through the javadocs for the CoreContainer and CoreDescriptor classes
(20th-Aug nightly, the latest I could find). The steps for creating a SolrCore
now appear to be: (Note for the benefit of those who might stumble upon this
through a websearch - this is not a HOWTO but my best guess which may not be
correct)
1. CoreContainer.Initializer.setSolrConfigFilename("path/solrconfig.xml")
2. cc = CoreContainer.Initializer.initialize()
3. cd = new CoreDescriptor(cc, "core01", "path/solrHome/for/core01")
4. SolrCore sc = cc.create(cd)
Is this correct?
To specify my problem in another way, I have a solrconfig.xml but no
schema.xml. I create a IndexSchema object at runtime. I want to now get a
SolrCore object.
Thanks,
Nikhil
----- Original Message ----
From: Henrib <[EMAIL PROTECTED]>
To: solr-user@lucene.apache.org
Sent: Thursday, 28 August, 2008 5:23:48 PM
Subject: Re: CoreDescriptor explanation and possible bug
Hi,
It is likely to be related to how you initialize Solr & create your
SolrCore; there has been a few changes to ensure there is always a
CoreContainer created which (as its name stands), holds a reference to all
created SolrCore.
There is a CoreContainer.Initializer class that allows to easily create that
CoreContainer (even if you don't have a solr.xml).
Hope this helps,
Henri
Nikhil Chhaochharia wrote:
>
> Hi,
>
> I have been using nightly builds of Solr 1.3 with SolrJ for some time now.
> I upgraded the Solr jars from the 14-Aug nightly and my program would not
> compile. I found that SolrCore constructor needed a new parameter
> CoreDescriptor. I passed null and it worked fine.
>
> I then upgraded to the Solr jars from the 20th-Aug nightly and it started
> throwing NullPointerExceptions. My guess is that the addition of the
> method SolrCore.getStatistics() which has the line "lst.add("aliases",
> getCoreDescriptor().getCoreContainer().getCoreNames(this));" throws the
> NPE.
>
> I searched the wiki and there is no mention of CoreDescriptor there.
> Could somebody please explain what CoreDescriptor is all about and how it
> is supposed to be used?
>
> Thanks,
> Nikhil
>
>
>
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