Method and apparatus for maintaining data integrity across distributed computer systems

• US 7,003,587 B1
• Filed: 04/26/2000
• Issued: 02/21/2006
• Est. Priority Date: 07/18/1996
• Status: Expired due to Fees

• Current Assignee: Computer Associates Think Inc. (Broadcom, Inc.)
• Original Assignee: Computer Associates Think Inc. (Broadcom, Inc.)
• Inventors: Battat, Reuven, Vinberg, Anders, Her, Michael, Sundaresh, Chandrasekha, Wang, Sidney
• Primary Examiner(s): Donaghue, Larry D.
• Application Number:
  US09/559,237
• Time in Patent Office: 2,127 Days
• Field of Search: 709/201, 709/203, 709/228, 709/229, 719/330
• US Class Current: 709/227
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/1095 Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes

Abstract

A method and apparatus are generally disclosed for maintaining data integrity across distributed computer systems. In one embodiment, the method of the invention includes the step of transmitting an object from a server application to a client application. The method also includes the step of transmitting an object state from the server application to the client application. The method further includes the steps of synchronizing the object and object state between the server application and the client application, and updating the object by invoking a server application method after the step of synchronizing. An apparatus and article of manufacture for carrying out the steps of the method are also disclosed.

Claims

1. A method for maintaining integrity of data stored throughout a distributed computer system, the method comprising:

transmitting an object from a server application to a client application;

transmitting an object state from the server application to the client application;

synchronizing the object and object state between the server application and the client application; and

updating the object by invoking a server application method after the step of synchronizing.

2. The method of claim 1 further comprising the step of:

resynchronizing the object and object state between the server application and the client application after the updating step.

3. A method for maintaining He integrity of data stored throughout a distributed computer system, the method comprising:

detecting by a server application a connection outage between a server application and a client application;

storing by the server application all transactions with the client application during the connection outage;

detecting by the client application the connection outage between the server application and the client application;

storing by the client application all transactions with the server application during the connection outage; and

propagating all transactions between the server application and the client application after the connection between the server application and the client application is restored.