aQute.bnd.osgi.repository

Class BaseRepository

java.lang.Object

aQute.bnd.osgi.repository.BaseRepository

All Implemented Interfaces:

Repository

Direct Known Subclasses:

AggregateRepository, AugmentRepository, ResourcesRepository

public abstract class BaseRepository
extends java.lang.Object
implements Repository

WARNING ! Not tested

Field Summary

Fields inherited from interface org.osgi.service.repository.Repository

URL

Constructor Summary

Constructors

Constructor and Description
BaseRepository()

Method Summary

Methods

Modifier and Type	Method and Description
Promise<java.util.Collection<Resource>>	findProviders(RequirementExpression expression) Find the resources that match the specified requirement expression.
ExpressionCombiner	getExpressionCombiner() Return an expression combiner.
RequirementBuilder	newRequirementBuilder(java.lang.String namespace) Return a new RequirementBuilder which provides a convenient way to create a requirement.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.osgi.service.repository.Repository

findProviders

Constructor Detail

BaseRepository

public BaseRepository()

Method Detail

findProviders

public Promise<java.util.Collection<Resource>> findProviders(RequirementExpression expression)

Description copied from interface: Repository

Find the resources that match the specified requirement expression.

Specified by:

findProviders in interface Repository

Parameters:

expression - The RequirementExpression for which matching capabilities should be returned. Must not be null.

Returns:

A promise to a collection of matching Resources. If there are no matching resources, an empty collection is returned. The returned collection is the property of the caller and can be modified by the caller. The returned collection may be lazily populated, so calling size() may result in a long running operation.

getExpressionCombiner

public ExpressionCombiner getExpressionCombiner()

Description copied from interface: Repository

Return an expression combiner. An expression combiner can be used to combine multiple requirement expressions into more complex requirement expressions using and, or and not operators.

Specified by:

getExpressionCombiner in interface Repository

Returns:

An ExpressionCombiner.

newRequirementBuilder

public RequirementBuilder newRequirementBuilder(java.lang.String namespace)

Description copied from interface: Repository

Return a new RequirementBuilder which provides a convenient way to create a requirement.

For example:

 
 Requirement myReq = repository.newRequirementBuilder("org.foo.ns1").
   addDirective("filter", "(org.foo.ns1=val1)").
   addDirective("cardinality", "multiple").build();
 

Specified by:

newRequirementBuilder in interface Repository

Parameters:

namespace - The namespace for the requirement to be created.

Returns:

A new requirement builder for a requirement in the specified namespace.