JCR and ModeShape
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Content Repository for Java API, ModeShape project, and jboss.org - talk from Red Hat Developer Conference 2011 (Brno, Czech republic)
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JCR and ModeShape
- 1. Content Repository API for Java ™ (JCR) & ModeShape Jozef Chocholáček @jchochol JBoss Community Team
- 3. ModeShape – beyond JCR
- 4. How do we use JCR and ModeShape
- 9. Workspace
- 10. Node
- 11. Property
- 12. Node Type
- 13. Path / UUID
- 14. Session
- 17. Version manager
- 18. Lock manager
- 19. ...
- 20. JCR API Example
- 22. Supertype(s)
- 23. Primary node type / mixin node type
- 25. JCR Node Type Example
- 27. JCR-SQL
- 34. Search & query
- 35. Versioning
- 36. Access control
- 37. Referential integrity, locking, events, ...
- 39. CRX (Day Software / Adobe)
- 41. eXo Platform (donated to the Jboss Community)
- 42. Oracle Beehive
- 44. Own Graph API
- 45. Sequencers
- 47. Federation
- 48. RESTful API
- 49. Clustering
- 50. ...
- 52. Easy to write your own connector
- 54. E.g. filesystem, Subversion, JBDC metadata, ...
- 56. Use the best data store for each kind of data
- 57. Combination of own and external data
- 58. Consistent use of JCR API
- 61. Java class and source files
- 62. DDL files
- 63. XML files
- 65. Image metadata (JPEG, GIF, BMP, PCX, PNG, IFF, ...)
- 66. MP3
- 72. LIMIT and OFFSET
- 73. DEPTH and PATH criteria
- 75. IN and NOT IN
- 76. BETWEEN val1 [EXCLUSIVE] AND val2 [EXCLUSIVE]
- 77. Arithmetic expressions in criteria
- 79. WebDAV service
- 82. Eclipse plugin (JBoss Tools)
- 84. Leave the data where it is
- 85. Sequencers (automatized extraction of content)
- 86. Federation
- 87. Standard JCR API – and beyond
- 90. Backed up by a big open-source company
- 92. Old name was JBoss DNA
- 94. docs.jboss.org
- 97. By default on Apache Jackrabbit
- 98. Modular
- 99. From v.4.2.2 supports ModeShape
- 100. Goal: “Native” support for downloads.jboss.org
- 102. Drools
- 103. SOA Platform
- 104. BRMS
- 105. ...
- 107. ModeShape is JCR implementation, and adds important extensions
- 108. jboss.org eats its own dogfood ;-)
- 113. Twitter: @modeshape @magnolia_cms @jbossorg @jchochol
- 115. Questions ?
- 116. Thank You!
- 117. D2 D3 A107 9:00-9:45 Perl packaging for developers – Marcela Mašláňová MythTV - User view – Lukáš Doktor 9:50-10:35 Java packaging for developers – Stanislav Ochotnicky Gnome 3.0 (r)evolution - Tomáš Bžatek 10:40-11:25 JCR + ModeShape - Jozef Chocholáček Plasma Workspaces 4 by KDE – Lukáš Tinkl, Jaroslav Řezník Power management – Jaroslav Škarvada, Jan Včelák 11:30-12:30 Lunch Lunch Lunch 12:30-13:15 Planning and Scheduling with Drools - Lukáš Petrovický Spice - Jonathan Blandford Introduction to Qt development – Jaroslav Řezník 13:20-14:05 Teiid - data virtualization system - Boris Belovic Beyond init: systemd - Lennart Poettering Remote Desktop – Adam Tkáč 14:10-14:55 PicketLink and PicketBox - Peter Škopek Discussion: Bootloader and Dracut Future Plans - Harald Hoyer (session ends 10 minutes sooner) Bug hunting & static analysis – Ondřej Vašík and Petr Muller 15:00-15:45 Web Services for Remote Portlets - Michal Vančo System vs. Session – David Zeuthen 15:50-16:35 Infinispan : The future of open source data grids – Radoslav Husár, Michal Linhard SysVinit, upstart and systemd in Fedora and RHEL – Petr Lautrbach 16:40-17:25 Deltacloud API – Michal Fojtik Modern Linux Desktop alphabet – Tomáš Bžatek, Jaroslav Řezník
Editor's Notes
- DB: structure, integrity, query FS: stream, locking, access control, hierarchy New: unstructured, versioning, search, events Typical use: ... test management systems
- In a writable repository a node's primary type is first assigned upon node creation, while mixin types may be assigned on creation or during a node's lifetime. Repository implementations may vary as to how flexible they are in allowing changes to the primary or mixin node types assigned to a node. . Primary type ~= Class, Mixin Type ~= Interface . nt:base, jcr:primaryType, . nt:hierarchyNode => nt:file, nt:folder, nt:resource, nt:address, ... . mix:referenceable, mix:created, mix:mimeType, mix:language .
- Xpath and JCR-SQL deprecated in JCR 2.0 . Nodes appear as rows in those tables that correspond to the node’s types - a node can appear as a row in multiple tables - often a complete picture of a node requires joining multiple tables - other joins are possible, such as ancestors, descendants, equivalent properties . JQOM = Java Query Object Model (mapping of AQM to Java API) javax.jcr.query.qom.* .
- Search & Query: most implementations automatically indexes the content (Jackrabbit and ModeShape use Lucene)
- eXo-JCR has been donated to the JBoss Community by eXo Platform
- JDBC via JPA/Hibernate . Infinispan – data grid platform (CLOUD!!!) . E.g. transient or filesystem for light-weight apps (or development), Database (JPA) for production
- Connectors: other JCR,
- Mapping (projection) of R1:W1 -> F:Wa, F1:W2 -> F:Wb, R2:W1 -> F:Wc, ...
- ZIP (JAR, WAR, EAR): nt:file + nt:folder Java source/class: nt:unstructured for package – class name, annotations, constructors, methods, fields – class:* namespace MS Office: structure via POI library Image: jcr:mimeType, jcr:encoding, image:formatName, image:width, image:height, image:bitsPerPixel, image:progressive, image:numberOfImages, image:physicalWidthDpi, image:physicalHeightDpi, image:physicalWidthInches, image:physicalHeightInches Not sure about EXIF data TEIID sequencers (Teiid = data virtualization) Text sequencers (delimiter, fixed width)
- RESTful service: JSON responses (HTML, XML planned), uses RESTEasy . WebDAV: mount repository as network share . JDBC driver – it has many limitations, not full JDBC – workspace in URL is optional, driver connects to the default workspace if missing . JOPR/RHQ – managment tool .
- Imagine the situation: You have to develop search solution for your company data – partially in SQL databases, partially in SAP, some data on filesystem (MS Office docs), ... Then you can develop all parsers, connectors etc. on your own – or you will use JCR API in your “search engine” and ModeShape with its connectors, sequencers and federationm for accessing the data.
- They fleed to GitHub but the rest of the infrastructure is on jboss.org
- 4.2.2 is considered experimental . Performance issues, to be solved in ModeShape 2.5 .
- In SOA-Platform 5.1 to be released in few days . In BRMS 5.1.1 or 5.2 (5.1 to be released as ^^^) .