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115 lines
4.2 KiB
Plaintext
115 lines
4.2 KiB
Plaintext
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.idl"
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#include "nsIRDFContainer.idl"
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#include "nsIRDFResource.idl"
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// Container utilities
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[scriptable, uuid(D4214E91-FB94-11D2-BDD8-00104BDE6048)]
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interface nsIRDFContainerUtils : nsISupports {
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/**
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* Returns 'true' if the property is an RDF ordinal property.
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*/
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boolean IsOrdinalProperty(in nsIRDFResource aProperty);
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/**
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* Convert the specified index to an ordinal property.
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*/
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nsIRDFResource IndexToOrdinalResource(in long aIndex);
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/**
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* Convert the specified ordinal property into an index
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*/
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long OrdinalResourceToIndex(in nsIRDFResource aOrdinal);
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/**
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* Return 'true' if the specified resource is a container
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*/
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boolean IsContainer(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Return 'true' if the specified resource is a container and it is empty
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*/
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boolean IsEmpty(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Return 'true' if the specified resource is a bag
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*/
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boolean IsBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Return 'true' if the specified resource is a sequence
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*/
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boolean IsSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Return 'true' if the specified resource is an alternation
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*/
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boolean IsAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Decorates the specified resource appropriately to make it
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* usable as an empty bag in the specified data source.
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*/
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nsIRDFContainer MakeBag(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Decorates the specified resource appropriately to make it
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* usable as an empty sequence in the specified data source.
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*/
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nsIRDFContainer MakeSeq(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Decorates the specified resource appropriately to make it
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* usable as an empty alternation in the specified data source.
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*/
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nsIRDFContainer MakeAlt(in nsIRDFDataSource aDataSource, in nsIRDFResource aResource);
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/**
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* Retrieve the index of element in the container. Returns -1 if
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* the element is not in the container.
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*/
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long indexOf(in nsIRDFDataSource aDataSource, in nsIRDFResource aContainer, in nsIRDFNode aElement);
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};
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%{C++
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extern nsresult
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NS_NewRDFContainerUtils(nsIRDFContainerUtils** aResult);
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%}
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