Information processing device, data synchronization program, data synchronization method, data synchronization system, and terminal device

An information processing device comprising:

• a non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of a computer, causes the computer to:
• receive changed content information of a synchronization target object from a plurality of clients connected to the information processing device via network;
• update a replicated object obtained by replicating the synchronization target object of a first client of the plurality of the clients having an ownership of the synchronization target object by using the changed content information;
• and
• instruct to a transmitter to transmit, by referring to management information that is managed for each synchronization target object and defines the first client of the plurality of clients having the ownership of the synchronization target object, the changed content information to a second client among the plurality of clients in a case where a transmission source client of the plurality of clients is defined as the first client.

A non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of a computer connected to a plurality of clients that synchronize an object with each other via a network, causes the computer to perform operations comprising:

• receiving changed content information of a synchronization target object from the plurality of clients;
• updating, by referring to management information that is managed for each synchronization target object and defines a first client of the plurality of clients having an ownership of the synchronization target object, a replicated object obtained by replicating the synchronization target object of the first client by using the changed content information in a case where a transmission source client is defined as the first client of the plurality of clients having the ownership of the synchronization target object in the management information;
• and
• instructing to a transmitter to transmit the changed content information to a second client of the plurality of clients other than the first client among the plurality of clients.

A non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of a computer connected to a plurality of clients that synchronize an object with each other via a network, causes the computer to perform operations comprising:

• receiving changed content information of a synchronization target object from the plurality of clients;
• updating a replicated object obtained by replicating the synchronization target object of a first client of the plurality of clients having an ownership of the synchronization target object by using the changed content information;
• and
• instructing to a transmitter to transmit, by referring to management information that is managed for each synchronization target object and defines the first client of the plurality of clients having the ownership of the synchronization target object, the changed content information to the second client of the plurality of clients other than the first client among the plurality of clients in a case where a transmission source client of the plurality of clients is defined as the first client of the plurality of clients.

A data synchronization method performed by an information processing device connected to a plurality of clients that synchronize an object with each other via a network, the data synchronization method comprising:

• receiving changed content information of a synchronization target object from the plurality of clients;
• defining a transmission source client of the plurality of clients as a first client having an ownership of the synchronization target object, by referring to management information that manages ownerships of each of the plurality of clients to each of synchronization target objects,
• updating a replicated synchronization target object obtained by replicating the synchronization target object of the first client of the plurality of clients by using the changed content information;
• and
• instructing to a transmitter to transmit the changed content information to a second client other than the first client among the plurality of clients.

A data synchronization method performed by an information processing device connected to a plurality of clients that synchronize an object with each other via a network, the data synchronization method comprising:

• receiving changed content information of a synchronization target object from the plurality of clients;
• updating a replicated object obtained by replicating the synchronization target object of a first client of the plurality of clients having an ownership of the synchronization target object by using the changed content information;
• and
• instructing to a transmitter to transmit, by referring to management information that is managed for each synchronization target object and defines the first client of the plurality of clients, the changed content information to a second client other than the first client among the plurality of clients in a case where a transmission source client of the plurality of clients is defined as the first client of the plurality of clients.

A data synchronization system comprising:

• a plurality of clients that synchronize an object with each other;
• and
• an information processing device that is connected to the plurality of clients via a network and includes:
• a non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of a computer, causes the computer to:
• receive changed content information of a synchronization target object from the plurality of clients;
• update, by referring to management information that is managed for each synchronization target object and defines a first client of the plurality of clients having an ownership of the synchronization target object, a replicated object obtained by replicating the synchronization target object of the first client of the plurality of clients by using the changed content information in a case where a transmission source client of the plurality of clients is defined as the first client of the plurality of clients;
• and
• instructing to a transmitter to transmit the changed content information to a second client other than the first client among the plurality of clients.

A data synchronization system comprising:

• a plurality of clients that synchronize an object with each other;
• and
• an information processing device that is connected to the plurality of clients via a network and includes:
• a non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of a computer, causes the computer to:
• receive changed content information of a synchronization target object from the plurality of clients;
• update a replicated object obtained by replicating the synchronization target object of a first client of the plurality of clients having an ownership of the synchronization target object by using the changed content information;
• and
• instructing to a transmitter to transmit, by referring to management information that is managed for each synchronization target object and defines the first client the plurality of clients, the changed content information to a second client other than the first client among the plurality of clients in a case where a transmission source client is defined as the first client of the plurality of clients.

A terminal device comprising:

• a first client that synchronizes an object with a second client via an information processing device and is communicably connected to the information processing device;
• and
• a non-transitory computer-readable medium containing executable instructions which when executed by one or more processors of clients, causes a system to:
• transmit, by referring to management information that is managed for each synchronization target object and defines the first client having an ownership of the synchronization target object, changed content information, which is information indicating that a replicated object obtained by replicating the synchronization target object is updated in the own client, to the information processing device only in a case where the own client is defined as the first client, when the replicated object obtained by replicating the synchronization target object is updated in the own client.