RepositoryAdmin

All Known Implementing Classes:

RepositoryAdminImpl
```
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:
1. Capabilities - Capabilities provide a named aspect: a bundle, a display, memory, etc.
2. Requirements - A named filter expression. The filter must be satisfied by one or more Capabilities 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? ###)
3. Requests - Requests are like requirements, except that a request can be fulfilled 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 $

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`Repository`	`addRepository(java.lang.String repository)` Add a new repository to the federation.
`Repository`	`addRepository(java.net.URL repository)` Add a new repository to the federation.
`Resource[]`	`discoverResources(Requirement[] requirements)` Discover any resources that match the given requirements.
`Resource[]`	`discoverResources(java.lang.String filterExpr)` Discover any resources that match the given filter.
`DataModelHelper`	`getHelper()` Return a helper to perform various operations on the data model
`Repository`	`getLocalRepository()` Return the repository containing locally installed resources
`Repository`	`getSystemRepository()` Return the repository containing the system bundle
`Repository[]`	`listRepositories()` List all the repositories.
`boolean`	`removeRepository(java.lang.String repository)` Remove a repository from the federation The url must point to a repository XML file.
`Resolver`	`resolver()` Create a resolver.
`Resolver`	`resolver(Repository[] repositories)` Create a resolver on the given repositories.

- Method Detail
  - discoverResources
```
Resource[] discoverResources(java.lang.String filterExpr)
                      throws org.osgi.framework.InvalidSyntaxException
```
    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:
    1. name
    2. version (uses filter matching rules)
    3. description
    4. category
    5. copyright
    6. license
    7. source
    Parameters:
    
    filterExpr - A standard OSGi filter
    
    Returns:
    
    List of resources matching the filters.
    
    Throws:
    
    org.osgi.framework.InvalidSyntaxException
  - discoverResources
```
Resource[] discoverResources(Requirement[] requirements)
```
    Discover any resources that match the given requirements.
    
    Parameters:
    
    requirements -
    
    Returns:
    
    List of resources matching the filter
  - resolver
```
Resolver resolver()
```
    Create a resolver.
    
    Returns:
  - resolver
```
Resolver resolver(Repository[] repositories)
```
    Create a resolver on the given repositories.
    
    Parameters:
    
    repositories - the list of repositories to use for the resolution
    
    Returns:
  - addRepository
```
Repository addRepository(java.lang.String 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
  - 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
  - removeRepository
```
boolean removeRepository(java.lang.String repository)
```
    Remove a repository from the federation The url must point to a repository XML file.
    
    Parameters:
    
    repository -
    
    Returns:
  - listRepositories
```
Repository[] listRepositories()
```
    List all the repositories.
    
    Returns:
  - getSystemRepository
```
Repository getSystemRepository()
```
    Return the repository containing the system bundle
    
    Returns:
  - getLocalRepository
```
Repository getLocalRepository()
```
    Return the repository containing locally installed resources
    
    Returns:
  - getHelper
```
DataModelHelper getHelper()
```
    Return a helper to perform various operations on the data model
    
    Returns:

Interface RepositoryAdmin

Method Summary

Method Detail

discoverResources

discoverResources

resolver

resolver

addRepository

addRepository

removeRepository

listRepositories

getSystemRepository

getLocalRepository

getHelper