Introducing JCR 2.0
What’s new in JSR-283
sep-2009
David Nuescheler

Agenda
 A Content Repository?
 JCR History, Adoption
 Top 10 New Features
 Beyond the Spec (Demo)
 Future Plans

JCR.
“The API should be a standard,
implementation independent,
way to access content bi-
directionally on a granular level
to a content repository.”

A Content Repository!?
CONTENT REPOSITORY
FEATURES OF AN FEATURES OF A
RDBMS FILESYSTEM
Transactions, Query, Structure, Integrity Binaries, Hierarchy, Locking, Access Control
+
ALL THE OTHER
GOOD STUFF
YOU ALWAYS WANTED
Unstructured, Versioning, Full-text,
Multi-Value, Sort-Order, Observation

When to use?
permissions binaries
search JCR read-most
versions unstructured
5

Industry Standards
170
283
6

Tracking success
7

Known Compliant Repositories
(* partially using 3rd party connectors)
Exo Microsoft
Apache Jackrabbit Oracle XML DB ECMS Platform Sharepoint OpenText Livelink
Day CRX IBM FileNet P8 Xythos Repository Alfresco ECM Vignette V7
Interwoven Saperion +hund
reds o
Repository IBM CM / Domino EMC Documentum Archive registe f TCKs
red

Some known JCR Applications
Fast
BEA Portal Sun Oracle WebCenter Enterprise Search
JBoss Portal Interface 21
OpenPortal
Day Communique Spring Framework
magnolia WCMS DAM
Apache Sling Day Communique
Alfresco ECMS Mindquarry Collab
Collaboration Apache Tapestry
QSLabs
Apache Compliance Day Communiqué
Cocoon WCMS IBM FileNet
Artifactory medic-2-medic WebSiteManager
Apache James Maven Proxy mapofmedicine
Exo
ECMS Platform TYPO3
GX WebManager v5.0 WCM
InfoQ Hippo Liferay
Nuxeo ECM Online Community CMS Enterprise Portal
Jahia Sakai
Percussion Framework E-learning
Rhythmix QuickWCM Sourcemix
WCMS Lutece Sourcemix
Portal

Current Status

Backwards Compatible.
NEW
100%
& IMP
BACKWA ROVE
D
COMPAT RDS
IBLE
Binary Compatible
JSR-170 (JCR v1.0) Applications
do not require modification
Mixed environment supported (1.0 & 2.0 Apps)

Reorganized.
NEW
100DEL & BINDING
& IMP
BACKWA ROVE
D D
%
COMPAT RDS IMP ROVE
&
IBLE NEW
MO
Completely re-organized and clarified
Specification
Separate Content Repository model section
Removed a lot of the Java Language specification

Bundled.
NEW
100DEL & BINDING
& IMP
BACKWA ROVE
D D
%
COMPAT RDS IMP ROVE
&
IBLE NEW
MO NEW & IMPROVED
OSGI BUNDLE
Shipped jcr-2.0.jar is an OSGI Bundle
Ready to deploy in an OSGI Container

Favorites.
10

Query extensions
AQM
JQOM
NEW
#1 QUER
& IMP
ROVE SQL
2.0
D
Y Abstract Query Model
Java Query Object Model (Java Binding)
SQL Bindings

Query extensions
+JOIN
NEW
& IMP
#1 QUER
ROVE
2.0
D Revamped Result-Set to allow for multiple nodes
Y New and Improved query capabilities

Query extensions
-XPATH *
*well, still available but deprecated
NEW
& IMP
Not enough support from the EG
#1 QUER
ROVE
2.0
D
JQOM allows for many implementations
Y Jackrabbit / CRX will support XPATH

Access Control Management
+ACL
+POLICY
NEW & IM
PROVED
#2 ACL
2.0 Allows to set ACL and Access Control Policies

Retention Policy & Hold
+RETENTION
+LEGAL HOLD
NEW
& IMP
ROVE
#3 RM
2.0
D
Support for interaction with RM systems
Allows setting and introspection of Retention
Policies and Holds

Simple versioning
+LINEAR
VERSIONING
2.0
ED
NEW & IMPROV
#4 SIMPLE Simplified Versioning Model to allow
VERSIONING for ease of adoption.

Lifecycle Management
+BPM
Allows to express and introspect Lifecycle status
NEW & IM and transitions.
PROVED
#5 LIFECYCLE
2.0

Nodetype Registration
+REGISTER
NODETYPES
NEW
& IMP
ROVE
#6 NODE
2.0
D
MANAGE TYPE
MENT Standardized way of registering new and modify
registered Nodetypes

New property & nodetypes
+mix:title
+URL +mix:created
+mix:lastModified
+WEAK REFERENCE +mix:language
+DECIMAL +mix:etag
+nt:address
NEW & IMPROVED
#7 NEW PROPERTY
& NODETYPES
2.0 Things we missed in JCR 1.0 applications

Workspace Management
+CREATE &
REMOVE WS
2.0
PROVED
NEW & IM
#8 WORKSPACE Standardized way of create and remove
MANAGEMENT workspaces

Shareable nodes
+GRAPH
Multi-filing. Nodes can have multiple parents.
2.0
NEW & IMPROVED
#9 SHAREABLE
NODES

Journalling Observation
+DELTA SINCE?
NEW
& IMP what changed since I last checked?
#10 JOU
ROVE
2.0
D
RNALLIN
OBSERVA G
TION

Beyond the Spec?

Beyond the Spec.
NEW
& IMP
APACHE ROVE
NEW & PJACKRABBIT
2.0
D
ROVEN ;)
Robust Code base
Fully JCR 2.0 Compliant ;)
More tooling than ever
Established eco-system

Beyond the Spec.
NEW
& IMP
APACHE ROVE
NEW & PJACKRABBIT
2.0
D
ROVEN ;) YST
ATAL
ING!
C
JCR
APACHE SL
Restful Web Framework
Running on top of JCR
Never build a JCR WebApp without it. Seriously!

What’s next?

JCR 2.1
sion
misned
Sublan
P 009
2
Scripting, Ease of Use.