| 摘要 |
PROBLEM TO BE SOLVED: To reduce the traffic amount of a communication line as compared with the case of a rollback from a conventional external device and to reduce a communication load when the abnormality of a communication is generated by a method wherein reply information is transmitted to an external device so as to be stored in a memory and the reply information is transmitted to the external device when a connection is cut abnormally. SOLUTION: The data communication apparatus is provided with an ORB part 41 in which, when a request is made from clients 301 to 30n, the reply information corresponding to the request is transmitted to the clients 301 to 30n so as to be stored in the memory and which monitors the connection between the clients 301 to 30n and a transaction guarantee part 44 wherein, when the connection is cut abnormally on the basis of a connection monitored result, the reply information which is stored in the memory and which corresponds to the connection is transmitted to the clients 301 to 30n. |
