Package org.osgi.service.obr
Interface RepositoryAdmin
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public interface RepositoryAdmin
Provides centralized access to the distributed repository. A repository contains a set of resources. A resource contains a number of fixed attributes (name, version, etc) and sets of:- Capabilities - Capabilities provide a named aspect: a bundle, a display, memory, etc.
- Requirements - A named filter expression. The filter must be satisfied by one or more Capabilties with the given name. These capabilities can come from other resources or from the platform. If multiple resources provide the requested capability, one is selected. (### what algorithm? ###)
- Requests - Requests are like requirements, except that a request can be fullfilled by 0..n resources. This feature can be used to link to resources that are compatible with the given resource and provide extra functionality. For example, a bundle could request all its known fragments. The UI associated with the repository could list these as optional downloads.
- Version:
- $Revision: 1.3 $
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Repository
addRepository(java.net.URL repository)
Add a new repository to the federation.Resource[]
discoverResources(java.lang.String filterExpr)
Discover any resources that match the given filter.Resource
getResource(java.lang.String respositoryId)
Repository[]
listRepositories()
List all the repositories.boolean
removeRepository(java.net.URL repository)
Resolver
resolver()
Create a resolver.
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Method Detail
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discoverResources
Resource[] discoverResources(java.lang.String filterExpr)
Discover any resources that match the given filter. This is not a detailed search, but a first scan of applicable resources. ### Checking the capabilities of the filters is not possible because that requires a new construct in the filter. The filter expression can assert any of the main headers of the resource. The attributes that can be checked are:- name
- version (uses filter matching rules)
- description
- category
- copyright
- license
- source
- Parameters:
filterExpr
- A standard OSGi filter- Returns:
- List of resources matching the filters.
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resolver
Resolver resolver()
Create a resolver.- Parameters:
resource
-- Returns:
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addRepository
Repository addRepository(java.net.URL repository) throws java.lang.Exception
Add a new repository to the federation. The url must point to a repository XML file.- Parameters:
repository
-- Returns:
- Throws:
java.lang.Exception
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removeRepository
boolean removeRepository(java.net.URL repository)
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listRepositories
Repository[] listRepositories()
List all the repositories.- Returns:
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getResource
Resource getResource(java.lang.String respositoryId)
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