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#ifndef __com_sun_star_configuration_backend_XCompositeLayer_idl__
#define __com_sun_star_configuration_backend_XCompositeLayer_idl__

#include <com/sun/star/configuration/backend/XLayer.idl>
#include <com/sun/star/lang/NullPointerException.idl>
#include <com/sun/star/lang/IllegalArgumentException.idl>
#include <com/sun/star/lang/WrappedTargetException.idl>
#include <com/sun/star/configuration/backend/MalformedDataException.idl>


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


/**
  provides read access to layers that contain sublayers accessible through an
  additional criterion (for instance the locale they contain data for).

    @since OOo 1.1.2
  */
published interface XCompositeLayer : XLayer
{

    /**
      Returns a list of the criteria that can be used to access the
      sublayers.

      @return
            a list supported sublayer identifiers

      @throws com::sun::star::lang::WrappedTargetException
            if an error occurs in the retrieval of the data.
      */
    sequence<string> listSubLayerIds()
        raises (com::sun::star::lang::WrappedTargetException) ;


    /**
      Describes the content of a particular sublayer to
      an XLayerHandler.

      @param aHandler
            Handler object that will receive calls
            describing the contents of the sublayer.

      @param aSubLayerId
            Identifier of the sublayer to be read.
            <p> Must be one the identifiers returned by
                XCompositeLayer::listSubLayerIds()
            </p>

      @throws com::sun::star::lang::NullPointerException
              if a `NULL` handler is passed.
      @throws com::sun::star::lang::IllegalArgumentException
              if the identifier is invalid.
      @throws com::sun::star::lang::WrappedTargetException
              if an error occurs in the access to or processing of the data.
      @throws com::sun::star::configuration::backend::MalformedDataException
              if the data read from the layer is rejected as invalid by the
              XLayerHandler.
      */
    void readSubLayerData([in] XLayerHandler aHandler, [in] string aSubLayerId)
        raises (com::sun::star::lang::NullPointerException,
                com::sun::star::lang::IllegalArgumentException,
                com::sun::star::lang::WrappedTargetException,
                MalformedDataException) ;

} ;


} ; } ; } ; } ; } ;
#endif

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