gecko-dev/rdf/base/idl/nsIRDFContainerUtils.idl

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsISupports.idl"
#include "nsIRDFContainer.idl"
#include "nsIRDFResource.idl"
// Container utilities
[scriptable, uuid(D4214E91-FB94-11D2-BDD8-00104BDE6048)]
interface nsIRDFContainerUtils : nsISupports {
// Returns 'true' if the property is an RDF ordinal property.
boolean IsOrdinalProperty(in nsIRDFResource aProperty);
// Convert the specified index to an ordinal property.
nsIRDFResource IndexToOrdinalResource(in long aIndex);
// Convert the specified ordinal property into an index
long OrdinalResourceToIndex(in nsIRDFResource aOrdinal);
// Return 'true' if the specified resource is a container
boolean IsContainer(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Return 'true' if the specified resource is a bag
boolean IsBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Return 'true' if the specified resource is a sequence
boolean IsSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Return 'true' if the specified resource is an alternation
boolean IsAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Decorates the specified resource appropriately to make it
// usable as an empty bag in the specified data source.
nsIRDFContainer MakeBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Decorates the specified resource appropriately to make it
// usable as an empty sequence in the specified data source.
nsIRDFContainer MakeSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
// Decorates the specified resource appropriately to make it
// usable as an empty alternation in the specified data source.
nsIRDFContainer MakeAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
};
%{C++
extern nsresult
NS_NewRDFContainerUtils(nsIRDFContainerUtils** aResult);
%}