Re: [Springframework-developer] Lucene Integration

[Brian M. <br...@ap...>]

snapshot of the classes as they are now:

http://morphy.skife.org/spring-lucene/

-Brian

On Apr 2, 2005, at 4:19 PM, Brian McCallister wrote:

> I have a set of classes for Apache Lucene integration with Spring 
> (reasonable factory beans, a LuceneTemplate, and LuceneUtils) which 
> are designed to
>
> a) make it easier to work with Lucene from Spring (the template in 
> particular optimizes common cases nicely, and does the resource 
> open/closing like the other templates)
>
> b) make lucene index modifications abide by Spring's transaction 
> system by doing write-behind on adds (which are ignored on rollback) 
> and rolling back deletes via a transaction synchronization.
>
>
>
> I'd like to contribute them to Spring (if ya'll are interested), but 
> to clean up the code and design some first, I have a few questions:
>
> 1) Should transaction binding be "on" by default? Lucene is 
> semi-transactional by nature (supports r and r/w locks, changes are 
> flushed on reader/writer closing, etc), but I am not sure people 
> expect Lucene to be bound by other transactions. Potential confusion.
>
> 2) What is a good tx manager to use for the unit tests? I am using a 
> modified version of the TestTransactionManager in Spring right now 
> (just changed to make it accessible and use synchonrizations). It is 
> much easier to use the TransactionTemplate than to manually manage the 
> tx's for tests =)
>
> 3) Not all of the ~interesting things you can do in lucene are 
> convenient to expose (splitting indexes etc) from the configuration. 
> Right now, rather than make a hack, the factory beans only support 
> single indexes. The only multi-index thing exposed right now is really 
> a configuration option on the SearcherBean which allows for multiple 
> indexes and a MultiSearcher ~transparently.
>
> Thanks!
>
> -Brian
>
>
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