The following topics are covered:
The Java Content Repository specification JSR-170 has been split into two compliance levels as well as a set of optional features.
Level 1 defines a read-only repository.
Level 2 defines methods for writing content and bidirectional interaction with the repository.
eXo JCR supports JSR-170 level 1 and level 2 and all optional features. The recent JSR-283 is not yet supported.