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#ifndef __com_sun_star_configuration_backend_XBackendEntities_idl__
#define __com_sun_star_configuration_backend_XBackendEntities_idl__

#ifndef __com_sun_star_uno_XInterface_idl__
#include <com/sun/star/uno/XInterface.idl>
#endif

#ifndef __com_sun_star_lang_IllegalArgumentException_idl__
#include <com/sun/star/lang/IllegalArgumentException.idl>
#endif
#ifndef __com_sun_star_configuration_backend_BackendAccessException_idl__
#include <com/sun/star/configuration/backend/BackendAccessException.idl>
#endif

//=============================================================================

module com { module sun { module star { module configuration { module backend {

//=============================================================================

/**
  Provides functionality relating to common and supported entities
  for a configuration data backend.

  @see com::sun::star::configuration::backend::XBackend
  @see com::sun::star::configuration::backend::XMultiLayerStratum

  @since OOo 1.1.2
*/
published interface XBackendEntities : ::com::sun::star::uno::XInterface
{
    //-------------------------------------------------------------------------

    /**
        provides the entity id of the owner entity of the backend.

        @returns
            an entity identifier for the owner entity.
            <p> The owner entity is the default entity for the backend.
               For normal configuration data access the owner entity
               should always be used.
            </p>

        @see com::sun::star::configuration::backend::XBackend::listOwnLayers()
        @see com::sun::star::configuration::backend::XBackend::getOwnUpdateHandler()
    */
    string getOwnerEntity() ;

    //-------------------------------------------------------------------------

    /**
        provides the entity id of an entity for general administrative access.

        <p> The admin entity is an entity that should be used to
           read and manage configuration data that applies to all entities
           within the backend.
        </p>

        @returns
            an entity identifier for the admin entity or
            an empty string, if there is no entity that can be used for
            general administrative access.

    */
    string getAdminEntity() ;

    //-------------------------------------------------------------------------

    /**
        determines, if a given entity id exists in this backend.

        @param aEntity
            The name of an entity.

        @throws   com::sun::star::configuration::backend::BackendAccessException
                if an error occurs while accessing the backend.

        @returns
            <TRUE/>, if aEntity is a valid, existing entity for this backend,
            <FALSE/> otherwise.
    */
    boolean supportsEntity([in] string aEntity)
        raises( BackendAccessException );

    //-------------------------------------------------------------------------

    /**
        determines, if two given entity ids denote the same entity.

        @param aEntity
            The name of an entity.

        @param aOtherEntity
            The name of another entity.

        @returns
            <TRUE/>, if aEntity and aOtherEntity denote the same entity
            within this backend, <FALSE/> otherwise.

        @throws   com::sun::star::configuration::backend::BackendAccessException
                if an error occurs while accessing the backend.

        @throws   com::sun::star::lang::IllegalArgumentException
            if either entity does not exist.
    */
    boolean isEqualEntity([in] string aEntity, [in] string aOtherEntity)
        raises( BackendAccessException, com::sun::star::lang::IllegalArgumentException) ;

    //-------------------------------------------------------------------------
} ;

//=============================================================================

} ; } ; } ; } ; } ;

#endif
