Package org.osgi.service.serviceloader

Class ServiceLoaderNamespace

java.lang.Object

org.osgi.resource.Namespace

org.osgi.service.serviceloader.ServiceLoaderNamespace

public final class ServiceLoaderNamespace
extends Namespace

Service Loader Capability and Requirement Namespace.

This class defines the names for the attributes and directives for this namespace.

All unspecified capability attributes are of one of the following types:

• String
• Version
• Long
• Double
• List<String>
• List<Version>
• List<Long>
• List<Double>

and are used as arbitrary matching attributes for the capability. The values associated with the specified directive and attribute keys are of type String, unless otherwise indicated.

All unspecified capability attributes, unless the attribute name starts with full stop ('.' \u002E), are also used as service properties when registering a Service Provider as a service.

"Immutable"

Field Summary

Fields

Modifier and Type	Field	Description
static final String	CAPABILITY_REGISTER_DIRECTIVE	The capability directive used to specify the implementation class of the service.
static final String	SERVICELOADER_NAMESPACE	Namespace name for service loader capabilities and requirements.

Fields inherited from class org.osgi.resource.Namespace

CAPABILITY_DEPRECATED_DIRECTIVE, CAPABILITY_EFFECTIVE_DIRECTIVE, CAPABILITY_USES_DIRECTIVE, CARDINALITY_MULTIPLE, CARDINALITY_SINGLE, EFFECTIVE_ACTIVE, EFFECTIVE_RESOLVE, REQUIREMENT_CARDINALITY_DIRECTIVE, REQUIREMENT_EFFECTIVE_DIRECTIVE, REQUIREMENT_FILTER_DIRECTIVE, REQUIREMENT_RESOLUTION_DIRECTIVE, RESOLUTION_MANDATORY, RESOLUTION_OPTIONAL

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

SERVICELOADER_NAMESPACE

public static final String SERVICELOADER_NAMESPACE

Namespace name for service loader capabilities and requirements.

Also, the capability attribute used to specify the fully qualified name of the service type.

See Also:

• Constant Field Values

CAPABILITY_REGISTER_DIRECTIVE

public static final String CAPABILITY_REGISTER_DIRECTIVE

The capability directive used to specify the implementation class of the service. The value of this directive must be of type String.

If this directive is not specified, then all advertised Service Providers that match the service type name must be registered. If this directive is specified, then only Service Providers that match the service type name whose implementation class matches the value of this attribute must be registered. To not register a service for this capability use an empty string.

See Also:

• Constant Field Values