/usr/share/idl/firefox/nsIRDFDataSource.idl is in firefox-dev 11.0+build1-0ubuntu4.
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/* ***** 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):
* Jan Varga <varga@ku.sk>
*
* 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 "nsISupportsArray.idl"
#include "nsIRDFResource.idl"
#include "nsIRDFNode.idl"
#include "nsISimpleEnumerator.idl"
#include "nsIRDFObserver.idl"
%{C++
#include "nsISupportsArray.h"
%}
[scriptable, uuid(0F78DA58-8321-11d2-8EAC-00805F29F370)]
interface nsIRDFDataSource : nsISupports
{
/** The "URI" of the data source. This used by the RDF service's
* |GetDataSource()| method to cache datasources.
*/
readonly attribute string URI;
/** Find an RDF resource that points to a given node over the
* specified arc & truth value
*
* @return NS_RDF_NO_VALUE if there is no source that leads
* to the target with the specified property.
*/
nsIRDFResource GetSource(in nsIRDFResource aProperty,
in nsIRDFNode aTarget,
in boolean aTruthValue);
/**
* Find all RDF resources that point to a given node over the
* specified arc & truth value
*
* @return NS_OK unless a catastrophic error occurs. If the
* method returns NS_OK, you may assume that nsISimpleEnumerator points
* to a valid (but possibly empty) cursor.
*/
nsISimpleEnumerator GetSources(in nsIRDFResource aProperty,
in nsIRDFNode aTarget,
in boolean aTruthValue);
/**
* Find a child of that is related to the source by the given arc
* arc and truth value
*
* @return NS_RDF_NO_VALUE if there is no target accessible from the
* source via the specified property.
*/
nsIRDFNode GetTarget(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in boolean aTruthValue);
/**
* Find all children of that are related to the source by the given arc
* arc and truth value.
*
* @return NS_OK unless a catastrophic error occurs. If the
* method returns NS_OK, you may assume that nsISimpleEnumerator points
* to a valid (but possibly empty) cursor.
*/
nsISimpleEnumerator GetTargets(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in boolean aTruthValue);
/**
* Add an assertion to the graph.
*/
void Assert(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget,
in boolean aTruthValue);
/**
* Remove an assertion from the graph.
*/
void Unassert(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
/**
* Change an assertion from
*
* [aSource]--[aProperty]-->[aOldTarget]
*
* to
*
* [aSource]--[aProperty]-->[aNewTarget]
*/
void Change(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aOldTarget,
in nsIRDFNode aNewTarget);
/**
* 'Move' an assertion from
*
* [aOldSource]--[aProperty]-->[aTarget]
*
* to
*
* [aNewSource]--[aProperty]-->[aTarget]
*/
void Move(in nsIRDFResource aOldSource,
in nsIRDFResource aNewSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget);
/**
* Query whether an assertion exists in this graph.
*/
boolean HasAssertion(in nsIRDFResource aSource,
in nsIRDFResource aProperty,
in nsIRDFNode aTarget,
in boolean aTruthValue);
/**
* Add an observer to this data source. If the datasource
* supports observers, the datasource source should hold a strong
* reference to the observer.
*/
void AddObserver(in nsIRDFObserver aObserver);
/**
* Remove an observer from this data source.
*/
void RemoveObserver(in nsIRDFObserver aObserver);
/**
* Get a cursor to iterate over all the arcs that point into a node.
*
* @return NS_OK unless a catastrophic error occurs. If the method
* returns NS_OK, you may assume that labels points to a valid (but
* possible empty) nsISimpleEnumerator object.
*/
nsISimpleEnumerator ArcLabelsIn(in nsIRDFNode aNode);
/**
* Get a cursor to iterate over all the arcs that originate in
* a resource.
*
* @return NS_OK unless a catastrophic error occurs. If the method
* returns NS_OK, you may assume that labels points to a valid (but
* possible empty) nsISimpleEnumerator object.
*/
nsISimpleEnumerator ArcLabelsOut(in nsIRDFResource aSource);
/**
* Retrieve all of the resources that the data source currently
* refers to.
*/
nsISimpleEnumerator GetAllResources();
/**
* Returns whether a given command is enabled for a set of sources.
*/
boolean IsCommandEnabled(in nsISupportsArray aSources,
in nsIRDFResource aCommand,
in nsISupportsArray aArguments);
/**
* Perform the specified command on set of sources.
*/
void DoCommand(in nsISupportsArray aSources,
in nsIRDFResource aCommand,
in nsISupportsArray aArguments);
/**
* Returns the set of all commands defined for a given source.
*/
nsISimpleEnumerator GetAllCmds(in nsIRDFResource aSource);
/**
* Returns true if the specified node is pointed to by the specified arc.
* Equivalent to enumerating ArcLabelsIn and comparing for the specified arc.
*/
boolean hasArcIn(in nsIRDFNode aNode, in nsIRDFResource aArc);
/**
* Returns true if the specified node has the specified outward arc.
* Equivalent to enumerating ArcLabelsOut and comparing for the specified arc.
*/
boolean hasArcOut(in nsIRDFResource aSource, in nsIRDFResource aArc);
/**
* Notify observers that the datasource is about to send several
* notifications at once.
* This must be followed by calling endUpdateBatch(), otherwise
* viewers will get out of sync.
*/
void beginUpdateBatch();
/**
* Notify observers that the datasource has completed issuing
* a notification group.
*/
void endUpdateBatch();
};
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