michael@0: /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nscore.h"
michael@0: #include "nsCOMPtr.h"
michael@0: 
michael@0: #include "nsXULTemplateQueryProcessorRDF.h"
michael@0: #include "nsRDFQuery.h"
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTION(nsRDFQuery, mQueryNode)
michael@0: 
michael@0: NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsRDFQuery)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsITemplateRDFQuery)
michael@0:   NS_INTERFACE_MAP_ENTRY(nsISupports)
michael@0: NS_INTERFACE_MAP_END
michael@0: 
michael@0: NS_IMPL_CYCLE_COLLECTING_ADDREF(nsRDFQuery)
michael@0: NS_IMPL_CYCLE_COLLECTING_RELEASE(nsRDFQuery)
michael@0: 
michael@0: void
michael@0: nsRDFQuery::Finish()
michael@0: {
michael@0:     // the template builder is going away and the query processor likely as
michael@0:     // well. Clear the reference to avoid calling it.
michael@0:     mProcessor = nullptr;
michael@0:     mCachedResults = nullptr;
michael@0: }
michael@0: 
michael@0: nsresult
michael@0: nsRDFQuery::SetCachedResults(nsXULTemplateQueryProcessorRDF* aProcessor,
michael@0:                              const InstantiationSet& aInstantiations)
michael@0: {
michael@0:     mCachedResults = new nsXULTemplateResultSetRDF(aProcessor, this, &aInstantiations);
michael@0:     if (! mCachedResults)
michael@0:         return NS_ERROR_OUT_OF_MEMORY;
michael@0: 
michael@0:     return NS_OK;
michael@0: }
michael@0: 
michael@0: 
michael@0: void
michael@0: nsRDFQuery::UseCachedResults(nsISimpleEnumerator** aResults)
michael@0: {
michael@0:     *aResults = mCachedResults;
michael@0:     NS_IF_ADDREF(*aResults);
michael@0: 
michael@0:     mCachedResults = nullptr;
michael@0: }