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#include <com/sun/star/uno/XInterface.idl>
#include <com/sun/star/uno/Exception.idl>

module com { module sun { module star { module deployment {

/** Objects implementing this interface provide an URL to the root of
    an installed package.

    @since OOo 2.3
*/
published interface XPackageInformationProvider
{
    /** get Package information for a specific extension.

        @param extensionId
               the unique identifier of an extension. The service looks for
               an installed package with the given id and returns the URL to
               the root of the package. If the service can not find a matching
               package, an emty string will be returned.
    */
    string getPackageLocation( [in] string extensionId );

    /** check if there are updates available for an extention.

        @param extensionId
               the unique identifier of an extension. When the extensionId is empty,
               the service looks checks all installed extensions for a newer version,
               otherwise the service looks for updates for an installed package with
               the given id.
       If the service finds an update for an extension, a sequence containing the name
            and the version will be returned for each extension which has an update.
       If the service can not find a matching package, an empty sequence is returned.
    */
    sequence< sequence< string > > isUpdateAvailable( [in] string extensionId );

    /** returns a list of all installed extention with their version.
    */
    sequence< sequence< string > > getExtensionList();
};

}; }; }; };