gecko-dev/xpcom/ds/nsIPropertyBag2.idl

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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* nsIVariant based Property Bag support. */
#include "nsIPropertyBag.idl"
[scriptable, uuid(625cfd1e-da1e-4417-9ee9-dbc8e0b3fd79)]
interface nsIPropertyBag2 : nsIPropertyBag
{
// Accessing a property as a different type may attempt conversion to the
// requested value
PRInt32 getPropertyAsInt32 (in AString prop);
PRUint32 getPropertyAsUint32 (in AString prop);
PRInt64 getPropertyAsInt64 (in AString prop);
PRUint64 getPropertyAsUint64 (in AString prop);
double getPropertyAsDouble (in AString prop);
AString getPropertyAsAString (in AString prop);
ACString getPropertyAsACString (in AString prop);
AUTF8String getPropertyAsAUTF8String (in AString prop);
boolean getPropertyAsBool (in AString prop);
/**
* This method returns null if the value exists, but is null.
*/
void getPropertyAsInterface (in AString prop,
in nsIIDRef iid,
[iid_is(iid), retval] out nsQIResult result);
/**
* This method returns null if the value does not exist,
* or exists but is null.
*/
nsIVariant get (in AString prop);
/**
* Check for the existence of a key.
*/
boolean hasKey (in AString prop);
};