{
StatementMetricArray array = groupMetrics[handle.getGroupNum()];
array.getRwLock().acquireReadLock();
try
{
StatementMetric metric = array.getAddMetric(handle.getIndex());
metric.addNumOutputIStream(numIStream);
metric.addNumOutputRStream(numRStream);
}
finally
{
array.getRwLock().releaseReadLock();
}