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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla 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/MPL/
- *
- * 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 the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #include "nsISupports.idl"
- #include "nsIRDFDataSource.idl"
- #include "nsIRDFResource.idl"
- #include "nsIRDFNode.idl"
- #include "nsISimpleEnumerator.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. If aRenumber is 'true', then the underlying RDF graph
- * will be 're-numbered' to account for the removal.
- */
- void RemoveElement(in nsIRDFNode aElement, in boolean aRenumber);
-
- /**
- * Insert aElement at the specified index. If aRenumber is 'true', then
- * the underlying RDF graph will be 're-numbered' to accomodate the new
- * element.
- */
- void InsertElementAt(in nsIRDFNode aElement, in long aIndex, in boolean aRenumber);
-
- /**
- * Remove the element at the specified index. If aRenumber is 'true', then
- * the underlying RDF graph will be 're-numbered' to account for the
- * removal.
- *
- * @return the element that was removed.
- */
- nsIRDFNode RemoveElementAt(in long aIndex, in boolean aRenumber);
-
- /**
- * Determine the index of an element in the container.
- *
- * @return The index of the specified element in the container. If
- * the element is not contained in the container, this function
- * returns '-1'.
- */
- long IndexOf(in nsIRDFNode aElement);
- };
-
- %{C++
- nsresult
- NS_NewRDFContainer(nsIRDFContainer** aResult);
-
- nsresult
- NS_NewRDFContainer(nsIRDFDataSource* aDataSource,
- nsIRDFResource* aResource,
- nsIRDFContainer** aResult);
-
- /**
- * Create a cursor on a container that enumerates its contents in
- * order
- */
- nsresult
- NS_NewContainerEnumerator(nsIRDFDataSource* aDataSource,
- nsIRDFResource* aContainer,
- nsISimpleEnumerator** aResult);
-
-
- %}
-