interface BundleContext {
    // Access to framework properties
    String getProperty (String key);

    // Access to objects representing bundles
    Bundle getBundle ();
    Bundle getBundle (long id);
    Bundle getBundle (String location);
    Bundle [] getBundles ();

    // Support for bundle management
    Bundle installBundle (String location, InputStream input) throws BundleException;
    Bundle installBundle (String location) throws BundleException;

    // Support for bundle lifecycle notifications
    void addBundleListener (BundleListener listener);
    void removeBundleListener (BundleListener listener);

    // Support for framework event notifications
    void addFrameworkListener (FrameworkListener listener);
    void removeFrameworkListener (FrameworkListener listener);

    // Support for persistent storage
    File getDataFile (String filename);

    ...
}