Knopflerfish OSGi 5.2.0

org.osgi.framework.namespace
Class HostNamespace

java.lang.Object
  extended by org.osgi.resource.Namespace
      extended by org.osgi.framework.namespace.AbstractWiringNamespace
          extended by org.osgi.framework.namespace.HostNamespace

public final class HostNamespace
extends AbstractWiringNamespace

Host Capability and Requirement Namespace.

This class defines the names for the attributes and directives for this namespace. All unspecified capability attributes are of type String 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.

Unless otherwise noted, all directives specified on the Bundle-SymbolicName header are visible in the capability and all directives specified on the Fragment-Host header are visible in the requirement.

A non-fragment resource with the with the osgi.bundle type identity provides zero or one host capabilities. A fragment resource with the osgi.fragment type identity must not declare a host capability and must declare exactly one host requirement.

† A resource with no bundle symbolic name must not provide a host capability.

Version:
$Id: aa3cc744c7b9c21d908260f456567ab8a6de1430 $
Immutable

Field Summary
static java.lang.String CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE
          The capability directive identifying if and when a fragment may attach to a host bundle.
static java.lang.String CAPABILITY_SINGLETON_DIRECTIVE
          The capability directive identifying if the resource is a singleton.
static java.lang.String EXTENSION_BOOTCLASSPATH
          The directive value indicating that the extension fragment is to be loaded by the boot class loader.
static java.lang.String EXTENSION_FRAMEWORK
          The directive value indicating that the extension fragment is to be loaded by the framework's class loader.
static java.lang.String FRAGMENT_ATTACHMENT_ALWAYS
          The directive value indicating that fragments are allowed to attach to the host bundle at any time (while the host is resolved or during the process of resolving the host bundle).
static java.lang.String FRAGMENT_ATTACHMENT_NEVER
          The directive value indicating that no fragments are allowed to attach to the host bundle at any time.
static java.lang.String FRAGMENT_ATTACHMENT_RESOLVETIME
          The directive value indicating that fragments are allowed to attach to the host bundle only during the process of resolving the host bundle.
static java.lang.String HOST_NAMESPACE
          Namespace name for host capabilities and requirements.
static java.lang.String REQUIREMENT_EXTENSION_DIRECTIVE
          The requirement directive used to specify the type of the extension fragment.
static java.lang.String REQUIREMENT_VISIBILITY_DIRECTIVE
          The requirement directive used to specify the visibility type for a requirement.
 
Fields inherited from class org.osgi.framework.namespace.AbstractWiringNamespace
CAPABILITY_BUNDLE_VERSION_ATTRIBUTE, CAPABILITY_MANDATORY_DIRECTIVE
 
Fields inherited from class org.osgi.resource.Namespace
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 Detail

HOST_NAMESPACE

public static final java.lang.String HOST_NAMESPACE
Namespace name for host capabilities and requirements.

Also, the capability attribute used to specify the symbolic name of the host.

See Also:
Constant Field Values

CAPABILITY_SINGLETON_DIRECTIVE

public static final java.lang.String CAPABILITY_SINGLETON_DIRECTIVE
The capability directive identifying if the resource is a singleton. A String value of "true" indicates the resource is a singleton; any other value or null indicates the resource is not a singleton.

This directive should be examined using the identity namespace.

See Also:
IdentityNamespace.CAPABILITY_SINGLETON_DIRECTIVE, Constant Field Values

CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE

public static final java.lang.String CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE
The capability directive identifying if and when a fragment may attach to a host bundle. The default value is always.

See Also:
FRAGMENT_ATTACHMENT_ALWAYS, FRAGMENT_ATTACHMENT_RESOLVETIME, FRAGMENT_ATTACHMENT_NEVER, Constant Field Values

FRAGMENT_ATTACHMENT_ALWAYS

public static final java.lang.String FRAGMENT_ATTACHMENT_ALWAYS
The directive value indicating that fragments are allowed to attach to the host bundle at any time (while the host is resolved or during the process of resolving the host bundle).

See Also:
CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE, Constant Field Values

FRAGMENT_ATTACHMENT_RESOLVETIME

public static final java.lang.String FRAGMENT_ATTACHMENT_RESOLVETIME
The directive value indicating that fragments are allowed to attach to the host bundle only during the process of resolving the host bundle.

See Also:
CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE, Constant Field Values

FRAGMENT_ATTACHMENT_NEVER

public static final java.lang.String FRAGMENT_ATTACHMENT_NEVER
The directive value indicating that no fragments are allowed to attach to the host bundle at any time.

See Also:
CAPABILITY_FRAGMENT_ATTACHMENT_DIRECTIVE, Constant Field Values

REQUIREMENT_EXTENSION_DIRECTIVE

public static final java.lang.String REQUIREMENT_EXTENSION_DIRECTIVE
The requirement directive used to specify the type of the extension fragment.

See Also:
EXTENSION_FRAMEWORK, EXTENSION_BOOTCLASSPATH, Constant Field Values

EXTENSION_FRAMEWORK

public static final java.lang.String EXTENSION_FRAMEWORK
The directive value indicating that the extension fragment is to be loaded by the framework's class loader.

See Also:
REQUIREMENT_EXTENSION_DIRECTIVE, Constant Field Values

EXTENSION_BOOTCLASSPATH

public static final java.lang.String EXTENSION_BOOTCLASSPATH
The directive value indicating that the extension fragment is to be loaded by the boot class loader.

See Also:
REQUIREMENT_EXTENSION_DIRECTIVE, Constant Field Values

REQUIREMENT_VISIBILITY_DIRECTIVE

public static final java.lang.String REQUIREMENT_VISIBILITY_DIRECTIVE
The requirement directive used to specify the visibility type for a requirement.

This directive should be examined using the bundle namespace.

See Also:
BundleNamespace.REQUIREMENT_VISIBILITY_DIRECTIVE, Constant Field Values

Knopflerfish OSGi 5.2.0