function triggerRowsUpdate(oTable, sReason) {
		if (oTable._bContextsAvailable) {
			TableUtils.Hook.call(oTable, Hook.UpdateRows, sReason || TableUtils.RowsUpdateReason.Unknown);
		}
	}
Triggers an update of the rows.

@param {sap.ui.table.Table} oTable
    Instance of the table.
@param {sap.ui.table.utils.TableUtils.RowsUpdateReason} [sReason=sap.ui.table.utils.TableUtils.RowsUpdateReason.Unknown]
    The reason for the update.
@private