Annotation Type Requirement
For example:
@Requirement(namespace=ExtenderNamespace.EXTENDER_NAMESPACE, name="osgi.component", version="1.3.0")
This annotation is not retained at runtime. It is for use by tools to generate bundle manifests or otherwise process the a package.
This annotation can be used to annotate an annotation.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic final class
Cardinality for this requirement.static final class
Resolution for this requirement. -
Required Element Summary
Required Elements -
Optional Element Summary
Optional ElementsModifier and TypeOptional ElementDescriptionString[]
A list of attribute or directive names and values.The cardinality of this requirement.The effective time of this requirement.The filter expression of this requirement, if any.The name of this requirement within the namespace.The resolution policy of this requirement.The floor version of the version range for this requirement.
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Element Details
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namespace
String namespaceThe namespace of this requirement. -
name
String nameThe name of this requirement within the namespace.If specified, adds an expression, using the
&
operator with any specifiedfilter()
, to the requirement's filter directive to test that an attribute with the name of the namespace is equal to the value of the specified name.- Default:
""
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version
String versionThe floor version of the version range for this requirement.If specified, adds a version range expression, using the
&
operator with any specifiedfilter()
, to the requirement's filter directive. The ceiling version of the version range is the next major version from the floor version. For example, if the specified version is1.3
, then the version range expression is(&(version>=1.3)(!(version>=2.0)))
.The specified version must be a valid OSGi version string.
- Default:
""
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filter
String filterThe filter expression of this requirement, if any.- Default:
""
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effective
String effectiveThe effective time of this requirement.Specifies the time the requirement is available. The OSGi framework resolver only considers requirement without an effective directive or effective:=resolve. Requirements with other values for the effective directive can be considered by an external agent.
If not specified, the
effective
directive is omitted from the requirement clause.- Default:
"resolve"
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attribute
String[] attributeA list of attribute or directive names and values.Each string should be specified in the form:
"name=value"
for attributes."name:type=value"
for typed attributes."name:=value"
for directives.
- Default:
{}
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cardinality
String cardinalityThe cardinality of this requirement.Indicates if this requirement can be wired a single time or multiple times.
If not specified, the
cardinality
directive is omitted from the requirement clause.- Default:
"SINGLE"
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resolution
String resolutionThe resolution policy of this requirement.A mandatory requirement forbids the bundle to resolve when this requirement is not satisfied; an optional requirement allows a bundle to resolve even if this requirement is not satisfied.
If not specified, the
resolution
directive is omitted from the requirement clause.- Default:
"MANDATORY"
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