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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Activities.Statements
{
using System;
using System.Activities;
using System.Collections.Generic;
public sealed class Persist : NativeActivity
{
static BookmarkCallback onPersistCompleteCallback;
protected override void CacheMetadata(NativeActivityMetadata metadata)
{
}
protected override bool CanInduceIdle
{
get
{
return true;
}
}
protected override void Execute(NativeActivityContext context)
{
if (context.IsInNoPersistScope)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.CannotPersistInsideNoPersist));
}
if (onPersistCompleteCallback == null)
{
onPersistCompleteCallback = new BookmarkCallback(OnPersistComplete);
}
context.RequestPersist(onPersistCompleteCallback);
}
static void OnPersistComplete(NativeActivityContext context, Bookmark bookmark, object value)
{
// No-op. This is here to keep the activity from completing.
}
}
}
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