org.apache.felix.bundlerepository

Interface Requirement

All Known Implementing Classes:

OSGiRequirementAdapter, RequirementImpl

public interface Requirement

A named requirement specifies the need for certain capabilities with the same name. A requirement is said to be satisfied by a capability if and only if:

• they have the same nsame
• the filter matches the capability properties

Version:

$Revision: 1.4 $

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.lang.String,java.lang.Object>	getAttributes() Return a map of attributes.
java.lang.String	getComment()
java.util.Map<java.lang.String,java.lang.String>	getDirectives() Return the map of directives for this requirement.
java.lang.String	getFilter() Return the filter.
java.lang.String	getName() Return the name of the requirement.
boolean	isExtend()
boolean	isMultiple()
boolean	isOptional()
boolean	isSatisfied(Capability capability) Check if the given capability satisfied this requirement.

Method Detail

getAttributes

java.util.Map<java.lang.String,java.lang.Object> getAttributes()

Return a map of attributes. Requirements can have attributes, but these are not used for matching. They are for informational purposes only.

Returns:

The map of attributes.

getDirectives

java.util.Map<java.lang.String,java.lang.String> getDirectives()

Return the map of directives for this requirement. This requirements map does *not* contain requirements that are modeled via direct APIs on this interface, such as the filter, cardinality and resolution.

Returns:

getName

java.lang.String getName()

Return the name of the requirement.

getFilter

java.lang.String getFilter()

Return the filter.

isMultiple

boolean isMultiple()

isOptional

boolean isOptional()

isExtend

boolean isExtend()

getComment

java.lang.String getComment()

isSatisfied

boolean isSatisfied(Capability capability)

Check if the given capability satisfied this requirement.

Parameters:

capability - the capability to check

Returns:

true is the capability satisfies this requirement, false otherwise