Appendix B. OSGi standard services

This appendix lists the Core, Compendium, and Enterprise services defined in release 4.2 of the OSGi specification. All services are optional: some are available from framework vendors, others are available from third-party vendors. Most service implementations work with any OSGi R4 framework.

B.1. Core OSGi services

Table B.1 lists the services defined in the OSGi Core specification. All of them are optional singleton services provided by the framework, except for the Service Hooks which may have zero or more instances registered by other bundles.

Table B.1. Core OSGi services

Name	Description	Package	Version
Package Admin	Provides the ability to control and reflect over bundle- and package-level wiring	org.osgi.service.packageadmin	1.2
Start Level	Controls the relative order of bundle startup by assigning start levels to bundles	org.osgi.service.startlevel	1.1
Conditional Permission Admin	Enables permission assignment to bundles based on arbitrary conditions	org.osgi.service.condpermadmin	1.1
Permission Admin	Enables permission assignment to bundles based on bundle location	org.osgi.service.permissionadmin	1.2
URL Handlers	Multiplexes URL and content-handler factories to allow bundles to provide custom handlers	org.osgi.service.url	1.0
Service Hooks	Allows bundles to monitor and limit service registry events and access	org.osgi.framework.hooks.service	1.0

B.2. Compendium OSGi services

Table B.2 lists the services defined in the OSGi Compendium specification. These services are provided by optional bundles installed on the base OSGi framework. There can be zero or more versions of a service registered at the same time.

Table B.2. Compendium OSGi services

Name	Description	Package	Version
Log	Provides a lightweight logging facility for bundles	org.osgi.service.log	1.3
HTTP	Defines a simple HTTP server supporting dynamic servlet and resource registration	org.osgi.service.http	1.2
Device Access	Manages the linking of devices and device drivers	org.osgi.service.device	1.1
Configuration Admin	Manages bundle configuration data storage and injection	org.osgi.service.cm	1.3
Metatype	Provides a schema or type description mechanism	org.osgi.service.metatype	1.1
Preferences	Provides storage and access to preferences and settings data	org.osgi.service.prefs	1.1
User Admin	Manages user identities and associated attributes	org.osgi.service.useradmin	1.1
Wire Admin	Defines and connects data producers to consumers	org.osgi.service.wireadmin	1.0
IO Connector	Adaptation of the J2ME javax. microedition.io communication infrastructure	org.osgi.service.io	1.0
Initial Provisioning	Defines a packaging format and delivery approach to deploy an initial set of bundles	org.osgi.service.provisioning	1.2
UPnP	Provides infrastructure to publish and discover UPnP services	org.osgi.service.upnp	1.1
Declarative Services	Defines a lightweight service-oriented component model	org.osgi.service.component	1.1
Event Admin	Provides publish-and-subscribe and topic-based event notification	org.osgi.service.event	1.2
Deployment Admin	Defines a packaging format and delivery approach for deploying bundle-based applications	org.osgi.service.deploymentadmin	1.1
Application Admin	Defines an abstract application manager concept for managing arbitrary application types	org.osgi.service.application	1.1
DMT Admin	Defines an API for managing a device using concepts from the OMA DM specifications	info.dmtree	1.0
Monitor Admin	Defines how bundles can publish status variables and how administrative bundles can discover, read, and set status variables	org.osgi.service.monitor	1.0
Foreign Application Access	Enables foreign applications to participate in the OSGi service-oriented architecture	org.osgi.application	1.0
Blueprint Container	Defines a service-oriented component model closely aligned with Spring	org.osgi.service.blueprint	1.0
XML Parser	Addresses how the classes defined in JAXP can be used in OSGi	org.osgi.util.xml	1.0

B.3. Enterprise OSGi services

Table B.3 lists the services defined in the OSGi Enterprise specification and specifically relating to using OSGi in an enterprise environment. These services are provided by optional bundles installed on the base OSGi framework. There can be zero or more versions of a service registered at the same time.

Table B.3. Enterprise OSGi services

Name	Description	Package	Version
Remote Service Admin	Addresses how remote services can be provided inside an OSGi framework and discovered in a network	org.osgi.service.remoteserviceadmin	1.0
JTA	Provides the JTA specification as a service-based model	javax.transaction	1.1
JMX	Exposes an OSGi framework via JMX	org.osgi.jmx	1.0
JDBC	Enables OSGi-aware JDBC drivers	org.osgi.service.jdbc	1.0
JNDI	Defines how JNDI can be utilized from within an OSGi framework	org.osgi.service.jndi	1.0
JPA	Specifies how persistence units and JPA providers work in an OSGi framework	org.osgi.service.jpa	1.0