Thanks for link and your write up. On 19/11/06, Shay Banon <[EMAIL PROTECTED]> wrote:
Since I do not want to invade Lucene user list regarding a discussion about Compass and Hiberante Search, but I still think that it is something that needs to get answered, here is a link to my blog post discussing this: http://jroller.com/page/kimchy?entry=hibernate_search_lucene . Cheers, Shay Emmanuel Bernard wrote: > > I forgot a couple of things. > I do not think that all your object properties belongs to the Index, and > some of them will be put in the index with information degradation (ie > store year/month rather than the whole date). So I do not believe there > is a bidirectional relationship between your domain model and your index > documents (for size, efficiency and accuracy purpose). > For that matter, Compass cannot really truly index your database backed > domain model and give back the object to you. Hibernate Search can > because it delegate the object hydration to Hibernate Core. > > Of course that's my opinions, and some people can disagree ;-) > > Emmanuel Bernard wrote: >> >> Hi, >> I am not really familiar with Compass I haven't really looked at the >> code, Hibernate Lucene (now renamed Hibernate Search) started from a >> user demand. I had some in depth discussions though, with some users >> that evaluated both Compass and Hibernate Search that helped me drive >> its design. >> >> Here are the arguments in favor of Hibernate Search: >> 1. not Yet Another API to deal with your domain model >> If you already use an ORM (JPA or Hibernate), you are familiar with >> those APIs. Using compass implies that you have to use a different set >> of API to play with the object lifecycle (CRUD). >> Hibernate Search is integrated with the org.hibernate.Query interface, >> and all the CUD operations on the index are triggered from the Hibernate >> CUD operations. >> >> 2. Metadata >> Metadata are minimal and fit particularly well through annotations, so >> you don't have yet another XML representation of ther same domain model >> (Compass might now have annotations support, you'll have to check) >> >> 3. it's all about managed objects (ie managed by the Session or the >> EntityManager) >> Hibernate Search gives you back objects managed by the Session, so any >> change made to them will (by default) be synchronized with the database, >> this is the normal behavior of an ORM, but is not what you have from a >> Compass search. >> This approach fits well with the JBoss Seam approach of having all the >> application around the domain model and EJB 3.0 >> >> 4. Not too much abstraction >> From what I've heard, Compass borrow a lot of its design / classnames >> from Hibernate/Spring/Lucene. Compass tries to abstract those 3 >> techlnologies (at least Hibernate and Lucene), by providing its own >> infrastructure. >> What am trying to do with Hibernate Search is to keep the abstraction as >> light as possible. For advanced Lucene query you'll have to use pure >> Lucene APIs, which is possible / natural with Hibernate Search >> >> >> I invite you to check these links (which I expect to release soon) >> http://www.mail-archive.com/hibernate-dev%40lists.jboss.org/msg00392.html >> and for the future (but flexible) >> http://www.mail-archive.com/hibernate-dev%40lists.jboss.org/msg00393.html >> >> HTH >> >> Emmanuel >> >> Lukas Vlcek wrote: >> > >> > Emanuael, >> > I would be glad to hear your answer here (on user list). >> > Regards, >> > Lukas >> > >> > ---------- Forwarded message ---------- >> > From: Emmanuel Bernard <[EMAIL PROTECTED] > >> > Date: Nov 13, 2006 11:07 PM >> > Subject: Re: Hibernate Lucene trademark issues >> > To: java-dev@lucene.apache.org, [EMAIL PROTECTED] >> > >> > Hi Lukas, >> > I'd be happy to answer your question, but I don't think Lucene dev is >> > the appropriate area for that kind of discussion. >> > let's move this discussion here >> > http://forum.hibernate.org/viewforum.php?f=9 (or in the Lucene User >> list >> > if you want to). >> > >> > Emmanuel >> > >> > Lukas Vlcek wrote: >> > > >> > > Hi Emmanuel, >> > > >> > > I am interested in you solution. I have a plan to use lucene and >> > hibernate >> > > in my next project and search will play very important role >> > > (*stake-holder* >> > > functionality). I have heard of >> > > comapss< http://www.opensymphony.com/compass/>project which introduces >> > > searching (lucene) layer on top of hibernate also. >> > > I haven't had a change to study it in detail yet. >> > > >> > > Do you think you could give me some high level comments about your >> > > motivation for implementing lucene search directly in hibernate code, >> > > couldn't you just use compass project? Is there any fundamental >> > difference >> > > between your approach and comapss? >> > > >> > > Many thanks, >> > > Lukas >> > > >> > > On 11/6/06, Emmanuel Bernard < [EMAIL PROTECTED]> wrote: >> > > > >> > > > Hi guys, >> > > > I'm Emmanuel Bernard from JBoss. >> > > > I'm the current lead developer of the Hibernate Lucene integration >> > > module. >> > > > The goal of this project is to facilitate the integration of a >> search >> > > > capability to Hibernate based applications. And guess what, I use >> > Lucene >> > > > ;-) >> > > > >> > > > >> > > >> > >> http://www.hibernate.org/hib_docs/annotations/reference/en/html/lucene.html >> > > > >> > > >> > >> http://www.mail-archive.com/hibernate-dev%40lists.jboss.org/msg00392.html >> > > > >> > > > I realized this week end that the 'Hibernate Lucene' name might >> > infringe >> > > > the Apache Lucene trademark policy. >> > > > http://www.cafepress.com/lucene/ seems to state that Lucene is a >> > > > trademark of the Apache Software Foundation (nice golf shirt BTW) >> > > > But I wasn't able to find any document explaining the fair use >> of the >> > > > Lucene brand (the license as well as the notice seem to be silent >> on >> > > > this subject). >> > > > >> > > > Even if Lucene in not trademarked, what do you consider a fair >> use of >> > > > your brand? I'm happy to rename my project, I guess the initial >> choice >> > > > was more a tribute to your project than anything else. >> > > > >> > > > Emmanuel >> > > > >> > > > PS: please forward this email to the appropriate persons if this >> > is not >> > > > the case already (PMC or whatever) >> > > > >> > > > >> > > > >> --------------------------------------------------------------------- >> > > > To unsubscribe, e-mail: [EMAIL PROTECTED] >> > > > For additional commands, e-mail: [EMAIL PROTECTED] >> > > > >> > > > >> > > >> > >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > > -- View this message in context: http://www.nabble.com/Fwd%3A-Hibernate-Lucene-trademark-issues-tf2651281.html#a7433312 Sent from the Lucene - Java Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
