JSR 170 Content Repository for Java technology API
The Java content repository API (JSR 170) is a standard, implementation independent, way to access content bi-directionally on a granular level within a content repository. A Content Repository is a high-level information management system that is a superset of traditional data repositories. A content repository implements content services such as author based versioning, full textual searching, fine grained access control, content categorization and content event monitoring. It is these content services that differentiate a Content Repository from a Data Repository. This API proposes that content repositories have a dedicated, standard way of interaction with applications that deal with content. This API focuses on transactional read/write access, binary content (stream operations), textual content, full-text searching, filtering, observation, versioning, handling of hard and soft structured content.
http://jcp.org/en/jsr/detail?id=170