ModeShape 2.2 发布,元数据资源库

鉴客
 鉴客
发布于 2010年08月24日
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ModeShape (前身是 "JBoss DNA") 是一个实现了 JCR 2.0 (JSR-283) 规范,用以提供在不同系统上的内容存储的功能。

ModeShape 支持所有 JCR 2.0 的必选功能。

通常如果用一句话描述,我们总是将内容仓库说成是,“关系数据库”和“文件系统”的“集大成者”,外加所有那些我们一直没有但不得不内建在我们自己应用中的好东西。

这包括如事务、伸缩性、数据库端的查询、使用超大文件带来的真正好处、流、访问控制和文件系统端的层次结构,以及诸如版本标定、全文检索,以及两者都不支持但非常重要的“数据优先”方法。

JCR是描述所有这些特性的Java API。

 

ModeShape 2.2 主要改进内容包括:

  • Deploying on JBoss AS – We’ve improved the kit for deploying ModeShape into JBoss Application Server introduced as a technology preview in the previous release. It still is as simple as downloading and unzipping into a profile directory. ModeShape will run as a service in JBoss AS, so you can simply deploy applications that use the standard JCR 2.0 API to find and access their javax.jcr.Repository instance. You also get the WebDAV and RESTful services, and use JOPR for monitoring, alerting, and administration. We’ve also added several sequencers to the default configuration.
  • JDBC driver – We’ve improved the JDBC driver that was introduced as a technology preview in 2.1. And it’s now possible to use JDBC metadata, even if the driver is running in a remote process.
  • Teiid relational model sequencerTeiid Designer is a visual tool that enables rapid, model-driven definition, integration, management and testing of data services without programming using the Teiid database virtualization and federation engine. This new sequencer is able to parse parse relational model files produced by Teiid Designer, and extract the structured data model of the relational database design, including catalogs/schemas, tables, views, columns, primary keys, foreign keys, indexes, procedures, procedure results, procedure results, and logical relationships. This means that when these models are uploaded into a ModeShape repository, the sequencer writes to the repository all this relational metadata, where it can be queried and accessed by JCR, RESTful, and JDBC clients.
  • Teiid VDB sequencer – This new sequencer parses the virtual database archive files produced by the Teiid Designer, and extracts the structured relational data model described by each of the contained XMI files. This means that when VDB files are uploaded into a ModeShape repository, the sequencer writes to the repository all this virtual database and relational metadata contained in the VDB, where it can be queried and accessed by JCR, RESTful, and JDBC clients.

更多详情请看 release notes

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