Mozilla/mozilla/extensions/sql/base/src/mozSqlService.cpp

691 lines
20 KiB
C++

/* ***** 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 Jan Varga
* Portions created by the Initial Developer are Copyright (C) 2003
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 "nsReadableUtils.h"
#include "nsXPIDLString.h"
#include "nsCRT.h"
#include "nsIAtom.h"
#include "nsISupportsUtils.h"
#include "nsIServiceManager.h"
#include "rdf.h"
#include "nsRDFCID.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsNetUtil.h"
#include "nsIRDFXMLSink.h"
#include "nsIWindowWatcher.h"
#include "nsIPrompt.h"
#include "mozSqlService.h"
#include "mozSqlConnection.h"
#define SQL_NAMESPACE_URI "http://www.mozilla.org/SQL-rdf#"
static NS_DEFINE_CID(kRDFServiceCID, NS_RDFSERVICE_CID);
static NS_DEFINE_CID(kRDFContainerUtilsCID, NS_RDFCONTAINERUTILS_CID);
nsIRDFService* mozSqlService::gRDFService;
nsIRDFContainerUtils* mozSqlService::gRDFContainerUtils;
nsIRDFResource* mozSqlService::kSQL_AliasesRoot;
nsIRDFResource* mozSqlService::kSQL_Name;
nsIRDFResource* mozSqlService::kSQL_Type;
nsIRDFResource* mozSqlService::kSQL_Hostname;
nsIRDFResource* mozSqlService::kSQL_Port;
nsIRDFResource* mozSqlService::kSQL_Database;
nsIRDFResource* mozSqlService::kSQL_Priority;
mozSqlService::mozSqlService()
: mConnectionCache(nsnull)
{
}
mozSqlService::~mozSqlService()
{
gRDFService->UnregisterDataSource(this);
delete mConnectionCache;
NS_IF_RELEASE(kSQL_AliasesRoot);
NS_IF_RELEASE(kSQL_Name);
NS_IF_RELEASE(kSQL_Type);
NS_IF_RELEASE(kSQL_Hostname);
NS_IF_RELEASE(kSQL_Port);
NS_IF_RELEASE(kSQL_Database);
NS_IF_RELEASE(kSQL_Priority);
NS_IF_RELEASE(gRDFContainerUtils);
NS_IF_RELEASE(gRDFService);
}
NS_IMPL_ISUPPORTS3(mozSqlService,
mozISqlService,
nsIRDFDataSource,
nsIRDFRemoteDataSource)
NS_IMETHODIMP
mozSqlService::GetErrorMessage(nsAString& aErrorMessage)
{
aErrorMessage = mErrorMessage;
return NS_OK;
}
nsresult
mozSqlService::Init()
{
nsresult rv;
rv = CallGetService(kRDFServiceCID, &gRDFService);
if (NS_FAILED(rv)) return rv;
rv = CallGetService(kRDFContainerUtilsCID, &gRDFContainerUtils);
if (NS_FAILED(rv)) return rv;
gRDFService->GetResource(NS_LITERAL_CSTRING("SQL:AliasesRoot"),
&kSQL_AliasesRoot);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "name"),
&kSQL_Name);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "type"),
&kSQL_Type);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "hostname"),
&kSQL_Hostname);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "port"),
&kSQL_Port);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "database"),
&kSQL_Database);
gRDFService->GetResource(NS_LITERAL_CSTRING(SQL_NAMESPACE_URI "priority"),
&kSQL_Priority);
nsCOMPtr<nsIFile> file;
rv = NS_GetSpecialDirectory(NS_APP_USER_PROFILE_50_DIR, getter_AddRefs(file));
if (NS_FAILED(rv)) return rv;
rv = file->AppendNative(NS_LITERAL_CSTRING("sql.rdf"));
if (NS_FAILED(rv)) return rv;
nsCAutoString sql;
NS_GetURLSpecFromFile(file, sql);
rv = gRDFService->GetDataSourceBlocking(sql.get(), getter_AddRefs(mInner));
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIRDFXMLSink> sink = do_QueryInterface(mInner);
if (sink) {
nsCOMPtr<nsIAtom> prefix = do_GetAtom("SQL");
sink->AddNameSpace(prefix, NS_ConvertASCIItoUTF16(SQL_NAMESPACE_URI));
}
return gRDFService->RegisterDataSource(this, PR_FALSE);
}
NS_IMETHODIMP
mozSqlService::AddAlias(const nsAString& aName,
const nsAString& aType,
const nsAString& aHostname,
PRInt32 aPort,
const nsAString& aDatabase,
PRInt32 aPriority,
nsIRDFResource** aResult)
{
nsCOMPtr<nsIRDFResource> alias;
gRDFService->GetAnonymousResource(getter_AddRefs(alias));
nsCOMPtr<nsIRDFLiteral> rdfLiteral;
nsCOMPtr<nsIRDFInt> rdfInt;
gRDFService->GetLiteral(PromiseFlatString(aName).get(), getter_AddRefs(rdfLiteral));
mInner->Assert(alias, kSQL_Name, rdfLiteral, PR_TRUE);
gRDFService->GetLiteral(PromiseFlatString(aType).get(), getter_AddRefs(rdfLiteral));
mInner->Assert(alias, kSQL_Type, rdfLiteral, PR_TRUE);
gRDFService->GetLiteral(PromiseFlatString(aHostname).get(), getter_AddRefs(rdfLiteral));
mInner->Assert(alias, kSQL_Hostname, rdfLiteral, PR_TRUE);
gRDFService->GetIntLiteral(aPort, getter_AddRefs(rdfInt));
mInner->Assert(alias, kSQL_Port, rdfInt, PR_TRUE);
gRDFService->GetLiteral(PromiseFlatString(aDatabase).get(), getter_AddRefs(rdfLiteral));
mInner->Assert(alias, kSQL_Database, rdfLiteral, PR_TRUE);
gRDFService->GetIntLiteral(aPriority, getter_AddRefs(rdfInt));
mInner->Assert(alias, kSQL_Priority, rdfInt, PR_TRUE);
nsresult rv = EnsureAliasesContainer();
if (NS_FAILED(rv))
return rv;
mAliasesContainer->AppendElement(alias);
Flush();
NS_ADDREF(*aResult = alias);
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::FetchAlias(nsIRDFResource* aAlias,
nsAString& aName,
nsAString& aType,
nsAString& aHostname,
PRInt32* aPort,
nsAString& aDatabase,
PRInt32* aPriority)
{
nsCOMPtr<nsIRDFNode> rdfNode;
nsCOMPtr<nsIRDFLiteral> rdfLiteral;
nsCOMPtr<nsIRDFInt> rdfInt;
const PRUnichar* value;
mInner->GetTarget(aAlias, kSQL_Name, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfLiteral = do_QueryInterface(rdfNode);
rdfLiteral->GetValueConst(&value);
aName.Assign(value);
}
mInner->GetTarget(aAlias, kSQL_Type, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfLiteral = do_QueryInterface(rdfNode);
rdfLiteral->GetValueConst(&value);
aType.Assign(value);
}
mInner->GetTarget(aAlias, kSQL_Hostname, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfLiteral = do_QueryInterface(rdfNode);
rdfLiteral->GetValueConst(&value);
aHostname.Assign(value);
}
mInner->GetTarget(aAlias, kSQL_Port, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfInt = do_QueryInterface(rdfNode);
rdfInt->GetValue(aPort);
}
mInner->GetTarget(aAlias, kSQL_Database, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfLiteral = do_QueryInterface(rdfNode);
rdfLiteral->GetValueConst(&value);
aDatabase.Assign(value);
}
mInner->GetTarget(aAlias, kSQL_Priority, PR_TRUE, getter_AddRefs(rdfNode));
if (rdfNode) {
rdfInt = do_QueryInterface(rdfNode);
rdfInt->GetValue(aPriority);
}
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::UpdateAlias(nsIRDFResource* aAlias,
const nsAString& aName,
const nsAString& aType,
const nsAString& aHostname,
PRInt32 aPort,
const nsAString& aDatabase,
PRInt32 aPriority)
{
nsCOMPtr<nsIRDFNode> rdfNode;
nsCOMPtr<nsIRDFLiteral> rdfLiteral;
nsCOMPtr<nsIRDFInt> rdfInt;
mInner->GetTarget(aAlias, kSQL_Name, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetLiteral(PromiseFlatString(aName).get(), getter_AddRefs(rdfLiteral));
mInner->Change(aAlias, kSQL_Name, rdfNode, rdfLiteral);
mInner->GetTarget(aAlias, kSQL_Type, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetLiteral(PromiseFlatString(aType).get(), getter_AddRefs(rdfLiteral));
mInner->Change(aAlias, kSQL_Type, rdfNode, rdfLiteral);
mInner->GetTarget(aAlias, kSQL_Hostname, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetLiteral(PromiseFlatString(aHostname).get(), getter_AddRefs(rdfLiteral));
mInner->Change(aAlias, kSQL_Hostname, rdfNode, rdfLiteral);
mInner->GetTarget(aAlias, kSQL_Port, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetIntLiteral(aPort, getter_AddRefs(rdfInt));
mInner->Change(aAlias, kSQL_Port, rdfNode, rdfInt);
mInner->GetTarget(aAlias, kSQL_Database, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetLiteral(PromiseFlatString(aDatabase).get(), getter_AddRefs(rdfLiteral));
mInner->Change(aAlias, kSQL_Database, rdfNode, rdfLiteral);
mInner->GetTarget(aAlias, kSQL_Priority, PR_TRUE, getter_AddRefs(rdfNode));
gRDFService->GetIntLiteral(aPriority, getter_AddRefs(rdfInt));
if (rdfNode)
mInner->Change(aAlias, kSQL_Priority, rdfNode, rdfInt);
else
mInner->Assert(aAlias, kSQL_Priority, rdfInt, PR_TRUE);
Flush();
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::RemoveAlias(nsIRDFResource* aAlias)
{
nsCOMPtr<nsIRDFNode> rdfNode;
mInner->GetTarget(aAlias, kSQL_Name, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Name, rdfNode);
mInner->GetTarget(aAlias, kSQL_Type, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Type, rdfNode);
mInner->GetTarget(aAlias, kSQL_Hostname, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Hostname, rdfNode);
mInner->GetTarget(aAlias, kSQL_Port, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Port, rdfNode);
mInner->GetTarget(aAlias, kSQL_Database, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Database, rdfNode);
mInner->GetTarget(aAlias, kSQL_Priority, PR_TRUE, getter_AddRefs(rdfNode));
mInner->Unassert(aAlias, kSQL_Priority, rdfNode);
nsresult rv = EnsureAliasesContainer();
if (NS_FAILED(rv))
return rv;
mAliasesContainer->RemoveElement(aAlias, PR_TRUE);
Flush();
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::GetAlias(const nsAString& aName, nsIRDFResource** _retval)
{
nsCOMPtr<nsIRDFLiteral> nameLiteral;
nsresult rv = gRDFService->GetLiteral(PromiseFlatString(aName).get(),
getter_AddRefs(nameLiteral));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIRDFResource> alias;
rv = mInner->GetSource(kSQL_Name, nameLiteral, PR_TRUE, getter_AddRefs(alias));
if (NS_FAILED(rv))
return rv;
NS_IF_ADDREF(*_retval = alias);
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::GetAliases(const nsAString& aName, nsISimpleEnumerator** _retval)
{
nsCOMPtr<nsIRDFLiteral> nameLiteral;
nsresult rv = gRDFService->GetLiteral(PromiseFlatString(aName).get(),
getter_AddRefs(nameLiteral));
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsISimpleEnumerator> aliases;
rv = mInner->GetSources(kSQL_Name, nameLiteral, PR_TRUE, getter_AddRefs(aliases));
if (NS_FAILED(rv))
return rv;
NS_IF_ADDREF(*_retval = aliases);
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::GetConnection(nsIRDFResource* aAlias, mozISqlConnection **_retval)
{
nsISupportsKey key(aAlias);
nsCOMPtr<nsIWeakReference> weakRef;
nsCOMPtr<mozISqlConnection> conn;
if (mConnectionCache) {
weakRef = getter_AddRefs(static_cast<nsIWeakReference*>(mConnectionCache->Get(&key)));
if (weakRef) {
conn = do_QueryReferent(weakRef);
if (conn)
NS_ADDREF(*_retval = conn);
}
}
if (! *_retval) {
nsresult rv = GetNewConnection(aAlias, getter_AddRefs(conn));
if (NS_FAILED(rv))
return rv;
weakRef = do_GetWeakReference(conn);
if (! mConnectionCache) {
mConnectionCache = new nsSupportsHashtable(16);
if (! mConnectionCache)
return NS_ERROR_OUT_OF_MEMORY;
}
mConnectionCache->Put(&key, weakRef);
NS_ADDREF(*_retval = conn);
}
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::GetNewConnection(nsIRDFResource* aAlias, mozISqlConnection **_retval)
{
nsAutoString name;
nsAutoString type;
nsAutoString hostname;
PRInt32 port;
nsAutoString database;
PRInt32 priority;
nsresult rv = FetchAlias(aAlias, name, type, hostname, &port, database, &priority);
if (NS_FAILED(rv))
return rv;
nsCAutoString contractID("@mozilla.org/sql/connection;1?type=");
AppendUTF16toUTF8(type, contractID);
nsCOMPtr<mozISqlConnection> conn = do_CreateInstance(contractID.get());
if (! conn)
return NS_ERROR_FAILURE;
nsCOMPtr<nsIWindowWatcher> watcher(do_GetService(NS_WINDOWWATCHER_CONTRACTID));
nsCOMPtr<nsIPrompt> prompter;
watcher->GetNewPrompter(0, getter_AddRefs(prompter));
PRBool retval;
do {
nsXPIDLString username;
nsXPIDLString password;
prompter->PromptUsernameAndPassword(
nsnull, // in wstring dialogTitle
nsnull, // in wstring text
getter_Copies(username),
getter_Copies(password),
nsnull, // in wstring checkMsg
nsnull, // inout boolean checkValue
&retval
);
if (retval) {
rv = conn->Init(hostname, port, database, username, password);
if (NS_FAILED(rv)) {
conn->GetErrorMessage(mErrorMessage);
prompter->Alert(nsnull, mErrorMessage.get());
}
}
} while(retval && NS_FAILED(rv));
NS_IF_ADDREF(*_retval = conn);
return rv;
}
NS_IMETHODIMP
mozSqlService::GetURI(char** aURI)
{
if (!aURI)
return NS_ERROR_NULL_POINTER;
*aURI = nsCRT::strdup("rdf:sql");
if (!(*aURI))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::GetSource(nsIRDFResource* aProperty,
nsIRDFNode* aTarget,
PRBool aTruthValue,
nsIRDFResource** aSource)
{
return mInner->GetSource(aProperty, aTarget, aTruthValue, aSource);
}
NS_IMETHODIMP
mozSqlService::GetSources(nsIRDFResource* aProperty,
nsIRDFNode* aTarget,
PRBool aTruthValue,
nsISimpleEnumerator** aSources) {
return mInner->GetSources(aProperty, aTarget, aTruthValue, aSources);
}
NS_IMETHODIMP
mozSqlService::GetTarget(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
PRBool aTruthValue,
nsIRDFNode** aTarget) {
return mInner->GetTarget(aSource, aProperty, aTruthValue, aTarget);
}
NS_IMETHODIMP
mozSqlService::GetTargets(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
PRBool aTruthValue,
nsISimpleEnumerator** aTargets) {
return mInner->GetTargets(aSource, aProperty, aTruthValue, aTargets);
}
NS_IMETHODIMP
mozSqlService::Assert(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget,
PRBool aTruthValue)
{
return mInner->Assert(aSource, aProperty, aTarget, aTruthValue);
}
NS_IMETHODIMP
mozSqlService::Unassert(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget)
{
return mInner->Unassert(aSource, aProperty, aTarget);
}
NS_IMETHODIMP
mozSqlService::Change(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aOldTarget,
nsIRDFNode* aNewTarget)
{
return mInner->Change(aSource, aProperty, aOldTarget, aNewTarget);
}
NS_IMETHODIMP
mozSqlService::Move(nsIRDFResource* aOldSource,
nsIRDFResource* aNewSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget)
{
return mInner->Move(aOldSource, aNewSource, aProperty, aTarget);
}
NS_IMETHODIMP
mozSqlService::HasAssertion(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget,
PRBool aTruthValue,
PRBool* hasAssertion)
{
return mInner->HasAssertion(aSource, aProperty, aTarget, aTruthValue, hasAssertion);
}
NS_IMETHODIMP
mozSqlService::AddObserver(nsIRDFObserver* aObserver)
{
return mInner->AddObserver(aObserver);
}
NS_IMETHODIMP
mozSqlService::RemoveObserver(nsIRDFObserver* aObserver)
{
return mInner->RemoveObserver(aObserver);
}
NS_IMETHODIMP
mozSqlService::HasArcIn(nsIRDFNode* aNode,
nsIRDFResource* aArc,
PRBool* _retval)
{
return mInner->HasArcIn(aNode, aArc, _retval);
}
NS_IMETHODIMP
mozSqlService::HasArcOut(nsIRDFResource* aSource,
nsIRDFResource* aArc,
PRBool* _retval)
{
return mInner->HasArcOut(aSource, aArc, _retval);
}
NS_IMETHODIMP
mozSqlService::ArcLabelsIn(nsIRDFNode* aNode,
nsISimpleEnumerator** aLabels)
{
return mInner->ArcLabelsIn(aNode, aLabels);
}
NS_IMETHODIMP
mozSqlService::ArcLabelsOut(nsIRDFResource* aSource,
nsISimpleEnumerator** aLabels)
{
return mInner->ArcLabelsIn(aSource, aLabels);
}
NS_IMETHODIMP
mozSqlService::GetAllResources(nsISimpleEnumerator** aResult)
{
return mInner->GetAllResources(aResult);
}
NS_IMETHODIMP
mozSqlService::GetAllCmds(nsIRDFResource* aSource,
nsISimpleEnumerator** aCommands)
{
return mInner->GetAllCmds(aSource, aCommands);
}
NS_IMETHODIMP
mozSqlService::IsCommandEnabled(nsISupportsArray* aSources,
nsIRDFResource* aCommand,
nsISupportsArray* aArguments,
PRBool* aResult)
{
return mInner->IsCommandEnabled(aSources, aCommand, aArguments, aResult);
}
NS_IMETHODIMP
mozSqlService::DoCommand(nsISupportsArray* aSources,
nsIRDFResource* aCommand,
nsISupportsArray* aArguments)
{
return mInner->DoCommand(aSources, aCommand, aArguments);
}
NS_IMETHODIMP
mozSqlService::BeginUpdateBatch()
{
return mInner->BeginUpdateBatch();
}
NS_IMETHODIMP
mozSqlService::EndUpdateBatch()
{
return mInner->EndUpdateBatch();
}
// nsIRDFRemoteDataSource
NS_IMETHODIMP
mozSqlService::GetLoaded(PRBool* aResult)
{
nsCOMPtr<nsIRDFRemoteDataSource> remote(do_QueryInterface(mInner));
return remote->GetLoaded(aResult);
}
NS_IMETHODIMP
mozSqlService::Init(const char* aURI)
{
return NS_OK;
}
NS_IMETHODIMP
mozSqlService::Refresh(PRBool aBlocking)
{
nsCOMPtr<nsIRDFRemoteDataSource> remote(do_QueryInterface(mInner));
return remote->Refresh(aBlocking);
}
NS_IMETHODIMP
mozSqlService::Flush()
{
nsCOMPtr<nsIRDFRemoteDataSource> remote(do_QueryInterface(mInner));
return remote->Flush();
}
NS_IMETHODIMP
mozSqlService::FlushTo(const char *aURI)
{
nsCOMPtr<nsIRDFRemoteDataSource> remote(do_QueryInterface(mInner));
return remote->FlushTo(aURI);
}
nsresult
mozSqlService::EnsureAliasesContainer()
{
if (! mAliasesContainer) {
PRBool isContainer;
nsresult rv = gRDFContainerUtils->IsContainer(mInner, kSQL_AliasesRoot, &isContainer);
if (NS_FAILED(rv)) return rv;
if (!isContainer) {
rv = gRDFContainerUtils->MakeSeq(mInner, kSQL_AliasesRoot, getter_AddRefs(mAliasesContainer));
if (NS_FAILED(rv)) return rv;
}
else {
mAliasesContainer = do_CreateInstance(NS_RDF_CONTRACTID "/container;1", &rv);
if (NS_FAILED(rv)) return rv;
rv = mAliasesContainer->Init(mInner, kSQL_AliasesRoot);
if (NS_FAILED(rv)) return rv;
}
}
return NS_OK;
}