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83 lines
2.7 KiB
Plaintext
83 lines
2.7 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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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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