pjs/rdf/base/idl/nsIRDFContainer.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 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsISupports.idl"
#include "nsIRDFDataSource.idl"
#include "nsIRDFResource.idl"
#include "nsIRDFNode.idl"
#include "nsIEnumerator.idl"
// A wrapper for manipulating RDF containers
[scriptable, uuid(D4214E90-FB94-11D2-BDD8-00104BDE6048)]
interface nsIRDFContainer : nsISupports {
readonly attribute nsIRDFDataSource DataSource;
readonly attribute nsIRDFResource Resource;
// Initialize the container wrapper to the specified resource
// using the specified datasource for context.
void Init(in nsIRDFDataSource aDataSource, in nsIRDFResource aContainer);
// Return the number of elements in the container. Note that this
// may not always be accurate due to aggregation.
long GetCount();
// Return an enumerator that can be used to enumerate the contents
// of the container in ascending order.
nsISimpleEnumerator GetElements();
// Append an element to the container, assigning it the next
// available ordinal.
void AppendElement(in nsIRDFNode aElement);
// Remove the first occurence of the specified element from the
// container.
void RemoveElement(in nsIRDFNode aElement, in boolean aRenumber);
void InsertElementAt(in nsIRDFNode aElement, in long aIndex, in boolean aRenumber);
long IndexOf(in nsIRDFNode aElement);
};
%{C++
PR_EXTERN(nsresult)
NS_NewRDFContainer(nsIRDFContainer** aResult);
PR_EXTERN(nsresult)
NS_NewRDFContainer(nsIRDFDataSource* aDataSource,
nsIRDFResource* aResource,
nsIRDFContainer** aResult);
/**
* Create a cursor on a container that enumerates its contents in
* order
*/
PR_EXTERN(nsresult)
NS_NewContainerEnumerator(nsIRDFDataSource* aDataSource,
nsIRDFResource* aContainer,
nsISimpleEnumerator** aResult);
%}