///<summary>
/// Load the specified workflow instance into memory from the
/// persistence store.
///</summary>
///<param name="instanceId">
/// The <see cref="T:System.Guid"></see> of the root activity of the workflow instance.
/// </param>
protected override Activity LoadWorkflowInstanceState(Guid instanceId)
{
TraceHelper.Trace();
Activity rootActivity = null;
try
{
using (IResourceAccessor resourceAccessor = CreateAccessor(this.resourceProvider))
{
byte[] instanceState = resourceAccessor.RetrieveInstanceState(
instanceId, serviceId, OwnershipTimeout);
rootActivity = RestoreFromDefaultSerializedForm(instanceState, null);
}
}
catch (Exception e)
{
TraceHelper.Trace(unexpectedExceptionText, e);
base.RaiseServicesExceptionNotHandledEvent(e, instanceId);
}
return(rootActivity);
}