Hello,

compass version 2.1 has been released:

http://www.theserverside.com/news/thread.tss?thread_id=51688

cheers
Jonas

Vincent Massol wrote:
> I think it would be nice to look at Compass 
> (http://www.compass-project.org/overview.html 
> ) or Hibernate Search (http://www.hibernate.org/410.html) for the  
> future.
> 
> I think Compass is better for us since we don't want to rely on  
> Hibernate for our storage in the future.
> 
> Here are some features of Compass:
> 
> "
> - Simple Compass provides a simple API for working with Lucene. If you  
> know how to use an ORM, then you will feel right at home with Compass  
> with simple operations for save, and delete & query.
> - Lucene Building on top of Lucene, Compass simplifies common usage  
> patterns of Lucene such as google-style search, index updates as well  
> as more advanced concepts such as caching and index sharding (sub  
> indexes). Compass also uses built in optimizations for concurrent  
> commits and merges.
> - Mapping Compass provides support for mapping of different data  
> "formats" - indexing and storing (caching) them in the Search Engine:  
> Object to Search Engine Mapping (using annotations or xml), XML to  
> Search Engine Mapping (using simple xpath expressions), and the low  
> level Resource to Search Engine Mappping.
> - Tx Compass provides a transactional API on top of the Search Engine  
> supporting different transaction isolation levels. Externally, Compass  
> provides a local transaction manager as well as integration with  
> external transaction managers such as JTA (Sync and XA), Spring, and  
> ORM ones.
> - ORM Compass integrates seamlessly with most popular ORM frameworks  
> allowing automatic mirroring, to the index, of the changes in data  
> performed via the ORM tool. Compass has generic support for JPA as  
> well as embedded support for Hibernate, OpenJPA, TopLink Essentials,  
> and EclipseLink allow to add Compass using three simple steps.
> - Spring Compass integrates seamlessly with Spring. Compass can be  
> easily configured using Spring, integrates with Spring transaction  
> management, has support for Spring MVC, and has Spring aspects built  
> in for reflecting operations to the search engine.
> - Distributed Compass simplifies the creation of distributed Lucene  
> index by allowing to store the Lucene index in a database, as well as  
> storing the index simply with Data Grid products such as GigaSpaces,  
> Coherence and Terracotta.
> "
> 
> The last point is especially important for our distributed lucene  
> searcg feature developed during the GSOC.
> 
> Thanks
> -Vincent
> 
> 
> 
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