Data transfer method, apparatus, and recording medium for use in hierarchical system

• US 20050154791A1
• Filed: 02/28/2005
• Published: 07/14/2005
• Est. Priority Date: 01/27/1999
• Status: Active Grant

• Current Assignee: Hiromi Sutou
• Original Assignee: Hiromi Sutou
• Inventors: Sutou, Hiromi
• Granted Patent: US 7,702,769 B2
• Time in Patent Office: Days
• US Class Current: 709/223
• CPC Class Codes: G06F 16/282 Hierarchical databases, e.g. IMS, LDAP data stores or Lotus Notes

Abstract

In a hierarchical network configuration, if transfer of data, such as requirements and responses therefrom and thereto, are executed in a relay manner between plural manager systems and managed systems on network routes, the requirements and the responses are duplicated in each manager system, thereby presenting a problem of increased amounts of data transfer on the network. It is possible to prevent the data transfer amounts from increasing not only on one route but also on plural routes by determining whether to update data on the basis of names of a manager system in upper layers, route information and so forth.

Claims

1. A method of data transfer in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, comprising the steps of:

defining previously at least one of default items in-a current system in a middle level of the hierarchical computer system;

receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

deleting all of items and data stored in a default data base of the current system;

storing the default items and data corresponding to the default items which coincide with items of the item file, to the default data base of the current system; and

sending items of the item file other than the default items to a lower system in a lower hierarchical level below the middle hierarchical level.

2. A method of data transfer in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, comprising the steps of:

defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

receiving a result file from a lower system in a lower hierarchical level below the middle hierarchical level;

adding the default items and default data corresponding to the default items stored in a default database of the current system, to the result file; and

sending the result file to an upper system in a higher hierarchical level above the middle hierarchical level.

3. A method of data transfer in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, comprising the steps of:

defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

deleting all of items and data stored in a default data base of the current system;

storing the default items and data corresponding to the default items which coincide with items of the item file, to the default data base of the current system;

generating a result file by using the default items and the data corresponding to the default items derived from the default data base when there is no more item to be sent to a lower system in a lower hierarchical level below the middle hierarchical level; and

sending the result file to the upper system.

4. A data transfer apparatus for use in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, comprising:

means for defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

means for receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

means for deleting all of items and data stored in a default data base of the current system;

means for storing the default items and data corresponding to the default items which coincide with items of the item file, to the default data base of the current system; and

means for sending items of the item file other than the default items to a lower system in a lower hierarchical level below the middle hierarchical level.

5. A data transfer apparatus for use in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner comprising:

means for defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

means for receiving a result file from a lower system in a lower hierarchical level below the middle hierarchical level;

means for adding the default items and default data corresponding to the default items stored in a default database of the current system, to the result file; and

means for sending the result file to an upper system in a higher hierarchical level above the middle hierarchical level.

6. A data transfer apparatus for use in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, comprising:

means for defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

means for receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

means for deleting all of items and data stored in a default database of the current system;

means for storing the default items and data corresponding to the default items which coincide with items of the item file, to the default data base of the current system;

means for generating a result file by using the default items and the data corresponding to the default items derived from the default data base when there is no more item to be sent to a lower system in a lower hierarchical level below the middle hierarchical level; and

means for sending the result file to the upper system.

7. A recording medium readable by a computer storing a program for executing a data transfer method in a hierarchical computer system in which a plurality of systems are interconnected in a hierarchical manner, the method comprising the steps of:

defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

deleting all of items and data stored in a default data base of the current system;

storing the default items and data corresponding to the default items which coincide with items of the item file, to the default database of the current system; and

sending items of the item file other than the default items to a lower system in a lower hierarchical level below the middle hierarchical level.

8. A recoding medium readable by a computer storing a program for executing a data transfer method in a hierarchical computer system, the method comprising the steps of:

defining previously at-least one of default items in a current system in a middle level of the hierarchical computer system;

receiving a result file from a lower system in a lower hierarchical level below the middle hierarchical level;

adding the default items and default data corresponding to the default items stored in a default data base of the current system, to the result file; and

sending the result file to an upper system in a higher hierarchical level above the middle hierarchical level.

9. A recording medium readable by a computer storing a program for executing a data transfer method in a hierarchical computer system, the method defining comprising the steps of:

defining previously at least one of default items in a current system in a middle level of the hierarchical computer system;

receiving an item file from an upper system in a higher hierarchical level above the middle hierarchical level;

deleting all of items and data stored in a default database of the current system;

storing the default items and data corresponding to the default items which coincide with items of the item file, to the default database of the current system;

generating a result file by using the default items and the data corresponding to the default items derived from the default database when there is no more item to be sent to a lower system in a lower hierarchical level below the middle hierarchical level; and

sending the result file to the upper system.