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#ifndef __com_sun_star_configuration_backend_LayerFilter_idl__
#define __com_sun_star_configuration_backend_LayerFilter_idl__

#include <com/sun/star/configuration/backend/XLayer.idl>
#include <com/sun/star/lang/XInitialization.idl>


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


/**
  provides a filtered version of a configuration data Layer.

  <p> A layer filter wraps a source XLayer object and
     provides access to a filtered version of its data.
     The data read from the filter usually is produced from the source data
     by adding and removing elements or modifying values.
  </p>

  @see com::sun::star::configuration::backend::DataImporter
        Service that supports applying a LayerFilter to imported data.

  @since OOo 2.0
  */
published service LayerFilter
{

    /**
      provides read access to the filtered contents.

      <p> Method XLayer::readData() will render a filtered version
         of the data produced by the same method of the source object.
     </p>
      */
    interface XLayer ;


    /**
      provides a means to set the source data for the filter.

      <p> Call com::sun::star::lang::XInitialization::initialize()()
         with a single argument of type com::sun::star::beans::NamedValue,
         where com::sun::star::beans::NamedValue::Name is <code>"Source"</code>
         and com::sun::star::beans::NamedValue::Value
         is an object implementing XLayer.
     </p>
      */
    interface com::sun::star::lang::XInitialization ;

} ;


} ; } ; } ; } ; } ;

#endif

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