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Reference Guide / eXo JCR

Java Content Repository and Extension services

Copyright © 2012 eXoPlatform SAS

1. Introduction in eXoJCR

1.1. Data model

2. Why use JCR?

2.1. What is JCR?
2.2. Why use JCR?
2.3. What does eXo do?
2.4. Further Reading

3. eXo JCR Implementation

3.1. Related Documents
3.2. How it works
3.3. Workspace Data Model

4. Advantages of eXo JCR

4.1. Advantages for application developers
4.2. Advantages for managers

5. Compatibility Levels

5.1. Level 1
5.2. Level 2
5.3. Optional features

6. Using JCR

6.1. Obtaining a Repository object

6.2. JCR Session common considerations

6.3. JCR Application practices

6.3.1. Simplifying the management of a multi-workspace application
6.3.2. Reusing SessionProvider

7. JCR Service Extensions

7.1. Concept
7.2. Implementation
7.3. Configuration
7.4. Related Pages

8. eXo JCR Application Model

9. NodeType Registration

9.1. Interfaces and methods

9.1.1. ExtendedNodeTypeManager
9.1.2. NodeTypeValue
9.1.3. NodeDefinitionValue
9.1.4. PropertyDefinitionValue
9.1.5. ItemDefinitionValue

9.2. Node type registration

9.2.1. Run time registration from xml file.
9.2.2. Run time registration using NodeTypeValue.

9.3. Changing existing node type

9.4. Removing node type

9.5. Practical How to

9.5.1. Adding new PropertyDefinition
9.5.2. Adding new child NodeDefinition
9.5.3. Changing or removing existing PropertyDefinition or child NodeDefinition
9.5.4. Changing the list of super types

10. Registry Service

10.1. Concept
10.2. The API
10.3. Configuration

11. Namespace altering

11.1. Adding new namespace
11.2. Changing existing namespace
11.3. Removing existing namespace

12. Node Types and Namespaces

12.1. Node Types definition
12.2. Namespaces definition

13. eXo JCR configuration

13.1. Related documents
13.2. Portal and Standalone configuration
13.3. JCR Configuration
13.4. Repository service configuration (JCR repositories configuration)
13.5. Repository configuration:
13.6. Workspace configuration:
13.7. Workspace data container configuration:
13.8. Value Storage plugin configuration (for data container):
13.9. Initializer configuration (optional):
13.10. Cache configuration:
13.11. Query Handler configuration:
13.12. Lock Manager configuration:
13.13. Help application to prohibit the use of closed sessions
13.14. Getting the effective configuration at Runtime of all the repositories

14. Multi-language support in eXo JCR RDB backend

14.1. Oracle
14.2. DB2
14.3. MySQL
14.4. PostgreSQL

15. How to host several JCR instances on the same database instance?

15.1. LockManager configuration
15.2. HibernateService configuration

16. Search Configuration

16.1. XML Configuration

16.2. Configuration parameters

16.3. Global Search Index

16.3.1. Global Search Index Configuration
16.3.2. Customized Search Indexes and Analyzers

16.4. Indexing Adjustments

16.4.1. IndexingConfiguration
16.4.2. Indexing rules
16.4.3. Indexing Aggregates
16.4.4. Property-Level Analyzers
16.4.5. Advanced features

17. JCR Configuration persister

17.1. Idea
17.2. Usage

18. JDBC Data Container Config

18.1. General recommendations for database configuration

18.1.1. DB2 configuration
18.1.2. MySQL configuration
18.1.3. PostgreSQL configuration
18.1.4. MS SQL configuration
18.1.5. Sybase configuration
18.1.6. Oracle configuration

18.2. Multi-database Configuration

18.3. Single-database configuration

18.3.1. Configuration without DataSource
18.3.2. Dynamic Workspace Creation

18.4. Simple and Complex queries

18.5. Forse Query Hints

18.6. Notes for Microsoft Windows users

19. External Value Storages

19.1. Tree File Value Storage
19.2. Simple File Value Storage
19.3. Content Addressable Value storage (CAS) support
19.4. Disabling value storage

20. Workspace Data Container

21. REST Services on Groovy

21.1. Usage

22. Configuring JBoss AS with eXo JCR in cluster

22.1. Launching Cluster

22.1.1. Deploying eXo JCR to JBoss As
22.1.2. Configuring JCR to use external configuration

22.2. Requirements

22.2.1. Environment requirements
22.2.2. Configuration requirements

22.3. How to stop the node properly

23. JBoss Cache configuration

23.1. JBoss cache configuration for indexer, lock manager and data container

23.2. JGroups configuration

23.3. Allow to share JBoss Cache instances

23.4. Shipped JBoss Cache configuration templates

23.4.1. Data container template
23.4.2. Lock manager template
23.4.3. Query handler (indexer) template

24. LockManager configuration

24.1. LockManagerImpl

24.2. CacheableLockManagerImpl

24.2.1. Configuration
24.2.2. Simple JbossCache Configuration
24.2.3. Template JBossCache Configuration
24.2.4. Data Types in Different Databases
24.2.5. Lock migration from 1.12.x

25. QueryHandler configuration

25.1. Indexing in clustered environment

25.2. Configuration

25.2.1. Query-handler configuration overview
25.2.2. Standalone strategy
25.2.3. Cluster-ready indexing strategies
25.2.4. JBoss-Cache template configuration

25.3. Asynchronous reindexing

25.3.1. On startup indexing
25.3.2. Hot Asynchronous Workspace Reindexing via JMX
25.3.3. Notices

25.4. Advanced tuning

25.4.1. Lucene tuning

26. JBossTransactionsService

26.1. Configuration

27. TransactionManagerLookup

28. Infinispan integration

28.1. Components configuration requirements

28.2. Workspaces configuration requirements

28.3. Shipped Infinispan Cache configuration templates

28.3.1. Data container template
28.3.2. Lock manager template
28.3.3. Query handler (indexer) template

29. RepositoryCreationService

29.1. Dependencies
29.2. How it works
29.3. Configuration
29.4. RepositoryCreationService Interface
29.5. Conclusions and restrictions

30. JCR Query Usecases

30.1. Query Lifecycle

30.1.1. Query Creation and Execution
30.1.2. Query Result Processing
30.1.3. Scoring

30.2. Query result settings

30.3. Type Constraints

30.4. Property Constraints

30.5. Path Constraint

30.6. Ordering specifing

30.7. Fulltext Search

30.8. Indexing rules and additional features

30.9. Query Examples

30.9.1. SetOffset and SetLimit
30.9.2. Finding All Nodes
30.9.3. Finding Nodes by Primary Type
30.9.4. Finding Nodes by Mixin Type
30.9.5. Property Comparison
30.9.6. LIKE Constraint
30.9.7. Escaping in LIKE Statements
30.9.8. NOT Constraint
30.9.9. AND Constraint
30.9.10. OR Constraint
30.9.11. Property Existence Constraint
30.9.12. Finding Nodes in a Case-Insensitive Way
30.9.13. Date Property Comparison
30.9.14. Node Name Constraint
30.9.15. Multivalue Property Comparison
30.9.16. Exact Path Constraint
30.9.17. Child Node Constraint
30.9.18. Finding All Descendant Nodes
30.9.19. Sorting Nodes by Property
30.9.20. Ordering by Descendant Nodes Property (XPath only)
30.9.21. Ordering by Score
30.9.22. Ordering by Path or Name
30.9.23. Fulltext Search by Property
30.9.24. Fulltext Search by All Properties in Node
30.9.25. Ignoring Accent Symbols. New Analyzer Setting.
30.9.26. Finding nt:file node by content of child jcr:content node
30.9.27. Changing Priority of Node
30.9.28. Removing Nodes Property From Indexing Scope
30.9.29. Regular Expression as Property Name in Indexing Rules
30.9.30. High-lighting Result of Fulltext Search
30.9.31. Searching By Synonim
30.9.32. Checking the spelling of Phrase
30.9.33. Finding Similar Nodes

30.10. Tips and tricks

30.10.1. XPath queries containing node names starting with a number

31. Searching Repository Content

31.1. Bi-directional RangeIterator (since 1.9)

31.2. Fuzzy Searches (since 1.0)

31.3. SynonymSearch (since 1.9)

31.4. High-lighting (Since 1.9)

31.4.1. DefaultXMLExcerpt
31.4.2. DefaultHTMLExcerpt
31.4.3. How to use it

31.5. SpellChecker

31.5.1. How do I use it?

31.6. Similarity (Since 1.12)

32. Fulltext Search And Affecting Settings

32.1. Property content indexing
32.2. Lucene Analyzers
32.3. How are different properties indexed?
32.4. Fulltext search query examples
32.5. Different analyzers in action

33. JCR API Extensions

33.1. API and usage
33.2. Configuration
33.3. Implementation notices

34.1. Configuration

34.2. Screenshots

34.2.1. MS Internet Explorer
34.2.2. Dav Explorer
34.2.3. Xythos Drive
34.2.4. Microsoft Office 2003
34.2.5. Ubuntu Linux

34.3. Comparison table of WebDav and JCR commands

34.4. Restrictions

34.4.1. Windows 7
34.4.2. Microsoft Office 2010

35.1. Configuration Parameters

35.1.1. command-port:
35.1.2. data-min-port & data-max-port
35.1.3. system
35.1.4. client-side-encoding
35.1.5. def-folder-node-type
35.1.6. def-file-node-type
35.1.7. def-file-mime-type
35.1.8. cache-folder-name
35.1.9. upload-speed-limit
35.1.10. download-speed-limit
35.1.11. timeout

36. eXo JCR Backup Service

36.1. Concept

36.2. How it works

36.2.1. Implementation details
36.2.2. Work basics

36.3. Configuration

36.4. RDBMS backup

36.5. Usage

36.5.1. Performing a Backup
36.5.2. Performing a Restore
36.5.3. Repository and Workspace initialization from backup

36.6. Scheduling (experimental)

36.7. Restore existing workspace or repository

36.8. Restore a workspace or a repository using original configuration

36.9. Backup set portability

37. HTTPBackupAgent and backup client

37.1. HTTPBackupAgent

37.1.1. HTTPBackupAgent methods
37.1.2. HTTPBackupAgent Configuration

37.2. Backup Client

37.3. Backup Client Usage

37.3.1. Building application
37.3.2. Running application
37.3.3. Getting information about backup service
37.3.4. Starting full backup
37.3.5. Starting full and incremental backup on a single workspace
37.3.6. Getting information about the current backups (in progress)
37.3.7. Getting information about the current backup by 'backup_id'
37.3.8. Stopping backup by "backup_id"
37.3.9. Getting information about the completed (ready to restore) backups
37.3.10. Restoring to workspace
37.3.11. Getting information about the current restore
37.3.12. Restoring workspace and remove exists workspace
37.3.13. Restoring workspace from backup set
37.3.14. Restoring workspace from backup set and remove exists workspace
37.3.15. Restoring workspace with original configuation
37.3.16. Restoring workspace with original configuation and remove exists workspace
37.3.17. Restoring workspace from backup set with original configuation
37.3.18. Restoring workspace from backup set with original configuation and remove exists workspace
37.3.19. Restoring repository
37.3.20. Restoring repository and remove exists repository
37.3.21. Restoring repository from backup set
37.3.22. Restoring repository from backup set and remove exists repository
37.3.23. Restoring repository with original configuation
37.3.24. Restoring repository with original configuation and remove exists repository
37.3.25. Restoring repository from backup set with original configuation
37.3.26. Restoring repository from backup set with original configuation and remove exists repository

37.4. Full example about creating backup and restoring it for workspace 'backup'

37.4.1. Creating backup
37.4.2. Getting information about current backups
37.4.3. Stopping backup by id
37.4.4. Deleting the workspace "backup" and close opened sessions on this workspace
37.4.5. Restoring the workspace "backup"
37.4.6. Getting information about restore for workspace /repository/backup

37.5. Full example about creating backup and restoring it for repository 'repository'

37.5.1. Creating backup
37.5.2. Getting information about current backups
37.5.3. Stopping backup by id
37.5.4. Deleting the repository "repository" and close all opened sessions
37.5.5. Restoring the repository "repository"
37.5.6. Getting information about restore for repository 'repository'

38.1. Repository suspending
38.2. Backup
38.3. Repository resuming

39. eXo JCR statistics

39.1. Statistics on the Database Access Layer
39.2. Statistics on the JCR API accesses
39.3. Statistics Manager

40. Checking repository integrity and consistency

40.1. Recommendations on how to fix corrupted JCR

42. The JCA Resource Adapter

42.1. The SessionFactory
42.2. Configuration
42.3. Deployment

43. Access Control

43.1. Standard Action Permissions

43.2. eXo Access Control

43.2.1. Principal and Identity
43.2.2. ACL
43.2.3. Notes
43.2.4. Example
43.2.5. Java API

44. Access Control Extension

44.1. Prerequisites
44.2. Access Context Action
44.3. The Invocation Context
44.4. Custom Extended Access Manager
44.5. Example of a custom Access Manager

45. Link Producer Service

46. Binary Values Processing

46.1. Configuration
46.2. Usage
46.3. Value implementations

47. JCR Resources:

48. JCR Workspace Data Container (architecture contract)

48.1. Concepts

48.1.1. Container and connection
48.1.2. Value storages
48.1.3. Lifecycle
48.1.4. Value storage lifecycle

48.2. Requirements

48.2.1. Read operations
48.2.2. Write operations
48.2.3. State operations
48.2.4. Validation of write operations
48.2.5. Consistency of save

48.3. Value storages API

48.3.1. Storages provider:
48.3.2. Value storage plugin
48.3.3. Value I/O channel
48.3.4. Transaction support via channel

49. How-to implement Workspace Data Container

49.1. Notes on Value storage usage:

50. DBCleanService

50.1. Methods of DBCleanerService
50.2. Need to clean only single workspace
50.3. Need to clean the whole repository

51. JCR Performance Tuning Guide

51.1. JCR Performance and Scalability

51.1.1. Cluster configuration
51.1.2. JCR Clustered Performance

51.2. Performance Tuning Guide

51.2.1. JBoss AS Tuning
51.2.2. JCR Cache Tuning
51.2.3. Clustering
51.2.4. JVM parameters

II. eXoKernel

52. ExoContainer info

52.1. Container hierarchy

53. Service Configuration for Beginners

53.1. Requirements

53.2. Services

53.3. Configuration File

53.4. Execution Modes

53.5. Containers

53.6. Configuration Retrieval

53.6.1. RootContainer
53.6.2. PortalContainer
53.6.3. StandaloneContainer

53.7. Service instantiation

53.8. Miscellaneous

53.8.1. Startable interface
53.8.2. Inversion of Control
53.8.3. More Containers
53.8.4. Single Implementation Services
53.8.5. Configuration properties
53.8.6. Configuration Logging

53.9. Further Reading

54. Service Configuration in Detail

54.1. Requirements

54.2. Sample Service

54.2.1. Java Class
54.2.2. First configuration file
54.2.3. Init Parameters
54.2.4. Service Access

54.3. Parameters

54.3.1. Value-Param
54.3.2. Properties-Param
54.3.3. Object-Param
54.3.4. Collection

54.4. External Plugin

54.5. Import

54.6. System properties

54.7. Understanding the prefixes supported by the configuration manager

55. Container Configuration

55.1. Kernel configuration namespace

55.2. Understanding how configuration files are loaded

55.2.1. Configuration Retrieval
55.2.2. Advanced concepts for the PortalContainers

55.3. System property configuration

55.3.1. Properties init param
55.3.2. Properties URL init param
55.3.3. System Property configuration of the properties URL

55.4. Variable Syntaxes

55.5. Runtime configuration profiles

55.5.1. Profiles activation
55.5.2. Profiles configuration

55.6. Component request life cycle

55.6.1. Component request life cycle contract
55.6.2. Request life cycle
55.6.3. When request life cycle is triggered

56. Inversion Of Control

56.1. How
56.2. Injection
56.3. Side effects

57. Services Wiring

57.1. Portal Instance
57.2. Introduction to the XML schema of the configuration.xml file
57.3. Configuration retrieval and log of this retrieval

58. Component Plugin Priority

59. Understanding the ListenerService

59.1. What is the ListenerService ?

59.2. How does it work?

59.2.1. Registering a listener
59.2.2. Triggering an event

59.3. How to configure a listener?

59.4. Concrete Example

60. Initial Context Binder

60.1. API

61. Job Scheduler Service

61.1. Where is Job Scheduler Service used in eXo Products?

61.2. How does Job Scheduler work?

61.2.1. How can Job Scheduler Service be used in Kernel?
61.2.2. Samples

61.3. Reference

62. eXo Cache

62.1. Basic concepts

62.2. Advanced concepts

62.2.1. Invalidation
62.2.2. FutureExoCache

62.3. eXo Cache extension

62.4. eXo Cache based on JBoss Cache

62.4.1. Configuring the ExoCacheFactory
62.4.2. Adding specific configuration for a cache
62.4.3. Adding a cache creator
62.4.4. Defining a cache

62.5. eXo Cache based on Infinispan

62.5.1. Configure the ExoCacheFactory
62.5.2. Add specific configuration for a cache
62.5.3. Add a cache creator
62.5.4. Define an infinispan cache instance
62.5.5. Using Infinispan in distributed mode

63. TransactionService

63.1. Existing TransactionService implementations

63.1.1. JOTM in standalone mode
63.1.2. Generic TransactionService based on the TransactionManagerLookup of JBoss Cache
63.1.3. Specific GenericTransactionService for JBoss Cache and Arjuna
63.1.4. Generic TransactionService based on the TransactionManagerLookup of Infinispan
63.1.5. Specific GenericTransactionService for Infinispan and Arjuna
63.1.6. A very specific TransactionService for JBoss AS
63.1.7. TransactionsEssentials in standalone mode

64. The data source provider

64.1. Configuration

65. JNDI naming

65.1. Prerequisites

65.2. How it works

65.2.1. JNDI System property initialization
65.2.2. JNDI reference binding

65.3. Configuration examples

65.4. Recommendations for Application Developers

65.5. InitialContextInitializer API

66. Logs configuration

66.1. Logs configuration initializer

66.2. Configuration examples

66.2.1. Log4J
66.2.2. JDK Logging
66.2.3. Commons Logging SimpleLogss

66.3. Tips and Troubleshooting

66.3.1. JBoss tips
66.3.2. Other tips

67. Manageability

67.1. Managed framework API

67.1.1. Annotations

67.2. JMX Management View

67.2.1. JMX Annotations

67.3. Example

67.3.1. CacheService example

68. ListenerService

69. RPC Service

69.1. Configuration
69.2. The SingleMethodCallCommand

III. eXoCore

70. Database Creator

70.1. API
70.2. A configuration examples
70.3. An examples of a DDL script

71. Security Service

71.1. Framework

71.1.1. ConversationState and ConversationRegistry
71.1.2. Authenticator

71.2. Usage

71.2.1. JAAS login module
71.2.2. Predefinded JAAS login modules
71.2.3. J2EE container authentication

72. Spring Security Integration

72.1. Installation

72.2. Configuration

72.2.1. JAAS disabling
72.2.2. Enabling spring security
72.2.3. security-context.xml

72.3. Login portlet example

72.3.1. Building the portlet
72.3.2. Setting up the login portal page
72.3.3. Customization of portal login and logout urls
72.3.4. A look at the login page

72.4. Integration strategies

72.4.1. Direct integration
72.4.2. Replication

72.5. Integration with eXo portal

72.6. Security context propagation to portlets

72.6.1. Portal side filter
72.6.2. Portlet side filter

72.7. Conclusion

73. Organization Service

73.1. Organizational Model

73.1.1. User
73.1.2. Group
73.1.3. Membership

73.2. Custom Organization Service implementation instructions

73.2.1. Basic entities implementation
73.2.2. Unit handlers implementation
73.2.3. Extending BaseOrganizationService class
73.2.4. Verification of compliance

73.3. Related articles and how-tos

74. Organization Service Initializer

75. Organization Listener

75.1. Writing your own listeners

75.1.1. UserEventListener
75.1.2. GroupEventListener
75.1.3. MembershipEventListener

75.2. Registering your listeners

76. Update ConversationState when user's Membership changed

77. DB Schema creator service (JDBC implementation)

78. Database Configuration for Hibernate

78.1. Generic configuration
78.2. Example DB configuration
78.3. Registering custom Hibernate XML files into the service

79. LDAP Configuration

79.1. Quickstart

79.2. Configuration

79.2.1. Connection Settings
79.2.2. Organization Service Configuration

79.3. Advanced topics

79.3.1. Automatic directory population
79.3.2. Active Directory sample configuration
79.3.3. OpenLDAP dynlist overlays

80. Organization Service TCK tests configuration

80.1. Maven pom.xml file configuration
80.2. Standalone container and Organization Service configuration

81. Tika Document Reader Service

81.1. Architecture

81.2. Configuration

81.3. Old-style DocumentReaders and Tika Parsers

81.3.1. How to make and register own DocumentReader

81.4. TikaDocumentReader features and notes

82. Digest Authentication

82.1. Server configuration

82.1.1. Tomcat Server configuration
82.1.2. Jetty server configuration
82.1.3. JBoss server configuration

82.2. OrganizationService implementation requirements

83. Introduction to the Representational State Transfer (REST)

84. Overwrite default providers

84.1. Motivation
84.2. Usage
84.3. Example

85. RestServicesList Service

85.1. Usage

85.1.1. HTML format
85.1.2. JSON format

86. Groovy Scripts as REST Services

86.1. Loading script and save it in JCR
86.2. Instantiation
86.3. Deploying newly created Class as RESTful service
86.4. Script Lifecycle Management
86.5. Getting node UUID example
86.6. Groovy script restrictions

87. Framework for cross-domain AJAX

87.1. Motivation
87.2. Scheme (how it works)
87.3. A Working Sequence:
87.4. How to use it

V. Frequently Asked Question

88. JCR FAQ

88.1. Kernel

88.1.1. What is the best, standardized way to get the instance of a service ?

88.2.1. JCR core
88.2.2. JCR extensions
88.2.3. WebDAV

VI. eXo JCR with GateIn

89. How to extend my GateIn instance?

89.1. Motivations

89.2. Prerequisites

89.2.1. Removing all the hard coded portal container name (i.e. "portal")
89.2.2. Removing all the hard coded rest context name (i.e. "rest")
89.2.3. Removing all the hard coded realm name (i.e. "exo-domain")
89.2.4. Making your Http Filters compatible
89.2.5. Making your HttpServlets compatible
89.2.6. Making your HttpSessionListeners compatible
89.2.7. Use init tasks if you need a PortalContainer to initialize an Http Filter or an HttpServlet
89.2.8. Making your LoginModules compatible
89.2.9. Avoiding static modifier on component dependency
89.2.10. Avoid component initialization based on component dependency in the constructor

89.3.1. What has changed since the previous versions?
89.3.2. What is the main purpose of a portal extension?
89.3.3. What is the main purpose of the starter?
89.3.4. How a portal and a portal container are related?
89.3.5. How to define and register a PortalContainerDefinition?
89.3.6. How the platform interprets the dependency order defined into the PortalContainerDefinition?
89.3.7. How to change the ServletContext name, the realm name and/or the rest context name of my portal without using a PortalContainerDefinition?
89.3.8. How to add new configuration file to a given portal from a war file?
89.3.9. How to create/define a portal extension?
89.3.10. How to deploy a portal extension?
89.3.11. How to create/define a new portal?
89.3.12. How to deploy a new portal?
89.3.13. How to import properly a configuration file using the prefix "war:"?
89.3.14. How to avoid duplicating configuration files just to rename a simple value?
89.3.15. How to add or change a Repository and/or a Workspace?
89.3.16. How to add new ResourceBundles to my portal?
89.3.17. How to overwrite existing ResourceBundles in my portal?
89.3.18. How to replace a groovy template of my portal?
89.3.19. How to add new Portal Configurations, Navigations, Pages or Portlet Preferences to my portal?
89.3.20. How to add new Http Filters to my portal without modifying the portal binary?
89.3.21. How to add new HttpSessionListeners and/or ServletContextListeners to my portal without modifying the portal binary?
89.3.22. How to add new HttpServlet to my portal without modifying the portal binary?
89.3.23. How to override or add a Context Parameter to my portal without modifying the portal binary?
89.3.24. Where can I found an example of how to extend my portal?
89.3.25. How to deploy the sample extension?
89.3.26. Where can I find an example of how to create a new portal?
89.3.27. How to deploy the sample portal?
89.3.28. I get "java.lang.IllegalStateException: No pre init tasks can be added to the portal container 'portal', because it has already been initialized." what can I do to fix it?

89.4. Recommendations

89.4.1. Don't ship your configuration files with your jar files?
89.4.2. Using a dedicated workspace/repository for your extension?

90. How to use AS Managed DataSource under JBoss AS

90.1. Declaring the datasources in the AS
90.2. Do not let eXo bind datasources explicitly

NextPart I. eXoJCR