Unidirectional ObjectServer Gateways
The unidirectional ObjectServer Gateway enables alerts to flow in one direction, from a source ObjectServer to a destination ObjectServer. The executable file name of a unidirectional ObjectServer gateway is nco_g_objserv_uni.
Changes made in the source ObjectServer are reflected in the destination ObjectServer, but changes in the destination ObjectServer are not reflected in the source ObjectServer.
Information flow
The following figure shows the structure of a unidirectional ObjectServer Gateway.

The unidirectional gateway is comprised of mapper, reader, and writer components. The flow of information between the components is as follows:
- 1 : The gateway reader reads data from the source ObjectServer, NCOMS1.
- 2 : The data is passed to the gateway mapper.
- 3 : The data is mapped from the tables and columns of the source ObjectServer to those in the target ObjectServer, based on the settings in the map definition file.
- 4 : The mapper passes the data to the gateway writer.
- 5 : The writer writes the data to the target ObjectServer, NCOMS2.