Retry -Sample Code

Here's a sample code taken from the AX class which shows the no of times you want to execute your code in try and catch statement.
try
{
ttsbegin;
reqCalcForecastItem.run();
ttscommit;
}
catch (Exception::Deadlock)
{
retry;
} catch (Exception::UpdateConflict)
{
if (appl.ttsLevel() == 0)
{
if (xSession::currentRetryCount() >= #RetryNum)
{
throw Exception::UpdateConflictNotRecovered;
}
else
{
retry;
}
}
else
{
throw Exception::UpdateConflict;
}
}