Compass : now with more features…

Compass is a first class open source Java Search Engine Framework, enabling the power of Search Engine semantics to your application stack decoratively. Built on top of the amazing Lucene Search Engine, Compass integrates seamlessly to popular development frameworks like Hibernate and Spring. Now in the latest release Compass 1.2, they are providing search capabilities for object models also. Compass allows to map your domain model (Object, pure XML, and the map like Compass Resource) into the search engine simply using either xml or annotations, and integrates with leading ORM libraries (Hibernate, TopLink, OpenJPA) and web frameworks (Spring MVC, Grails) in order to simplify even more the introduction of search into an application.

When we started to work with Compass [with Spring framework and Hibernate and months before the release of Hibernate search] there were no good documentations at all about it. that time we want to use Lucene for our full text search purpose. But because of the complexity of Lucene integration we used Compass as a Mapping framework between Spring and Lucene. My friend Roshan had done a lot of efforts to complete that successfully. Only one or two examples are the guidelines for him. Now Compass is improved a lot. It has a well prepared documentation [ style is looking like Spring’s official documentation], more examples, more and more features… and …. Now Hibernate search is also came to help us for full text search in a great and easy way.

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Compass Framework Modules


Excerpted from Compass official Documentation.compass-overview

Compass Core is the most fundamental part of Compass. It holds Lucene extensions for transactional index, search engine abstraction, ORM like API, transaction management integration, different mappings technologies (OSEM, XSEM and RSEM), and more. The aim of Compass core is to be usable within different scenarios and environments, and simplify the core operations done with a search engine.Compass Gps aim is to integrate with different content sources. The prime feature is the integration with different ORM frameworks (Hibernate, JPA, JDO, OJB), allowing for almost transparent integration between a search engine and an ORM view of content that resides in a database. Other features include a Jdbc integration, which allows to index database content using configurable SQL expression responsible for extracting the content.Compass Spring integrate Compass with the Spring Framework. Spring, being an easy to use application framework, provides a simpler development model (based on dependency injection and much more). Compass integrates with Spring in the same manner ORM Frameworks integration is done within the Spring Framework code-base. It also integrates with Spring transaction abstraction layer, AOP support, and MVC library.

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The new version of Compass is released

The third milestone release of version 1.1 ( version 1.1 M3) of COMPASS is released. It includes the following major features…

  • Support for polymorphic relationships
  • Better cyclic mappings support
  • FS Transactional Log
  • Runtime Settings
  • JdbcDirectory support Oracle 9
  • Initial XA Support
  • Performance Improvement

At the same time one other important news is that, hibernate is already started to add more features which will helpful to integrate Lucene directly to an application without using Compass framework.

Read more about this from it’s founder’s blog
Related post : Compass- a java search engine framework build on lucene
Technorati tags: Compass, Hibernate