Bidirectional update of client-server objects

• US 7,574,456 B2
• Filed: 12/16/2004
• Issued: 08/11/2009
• Est. Priority Date: 12/16/2004
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: SAP AG (SAP SE)
• Inventors: Niessen, Rudolf, Krane, Rolf
• Primary Examiner(s): Alam; Hosain T
• Assistant Examiner(s): Yen; Syling
• Application Number:
  US11/015,613
• Publication Number:
  US 20060136445A1
• Time in Patent Office: 1,699 Days
• Field of Search: 707/204, 707/200, 707/8, 707/9, 707/10, 709/203, 709/219, 709/200, 719/313
• US Class Current: 1/1
• CPC Class Codes: G06F 2209/544 Remote
• CPC Class Codes: G06F 2209/545 Gui
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications
• CPC Class Codes: Y10S 707/99938 Concurrency, e.g. lock management in shared database
• CPC Class Codes: Y10S 707/99939 Privileged access

Abstract

Methods and apparatus, including computer program products, for updating data. In one aspect, a system that has a server operating on a structure of server data objects and a client operating on a structure of client data objects, the data objects and the structure of the server data objects and the structure of the client data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, the data object update commands being operable to perform bidirectional updates between the server data objects and the client data objects. The two types of data object update commands are: an object level update type that is operable to update one or more specified data objects; and a sub-structure level update type that is operable to update a sub-structure of the data objects.

Claims

1. A computer-implemented hardware system including a processor, the system comprising:

a server using the processor to operate on a structure of server data objects and a client operating on a structure of client data objects, the server data objects, the client data objects, the structure of the server data objects, and the structure of the client data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, wherein the two types of data object update commands are;

an object level update type for performing bidirectional updates between the server data objects and the client data objects for updating an entire specified client data object or an entire specified server data object; and

a sub-structure level update type for performing bidirectional updates between the server data objects and the client data objects for updating a sub-structure of a specified client data object or a specified server data object, the sub-structure being a subset of the specified client data object or the specified server data object; and

a server protocol controller performing the steps of;

receiving one or more modifications to the structure of server data objects in response to a server operation,

determining, using the processor at the server, whether to transmit the object level update type command or the sub-structure level update type command based on a comparison of a predefined criteria and transmission requirements of the one or more modifications to the structure of server data objects, and

transmitting, based on the determination, an update command of either the object level update type or the sub-structure level update type to update the structure of client data objects with the modifications to the structure of server data objects.

2. The system of claim 1, wherein the server protocol controller transmits the update command of either the object level update type or the sub-structure level update type to the client.

3. The computer-implemented hardware system of claim 1, wherein the client protocol controller transmits the update command of either the object level update type or the sub-structure level update type to the server.

4. The computer-implemented hardware system of claim 1, wherein:

the client and server use the processor to implement a data object model, the data object model defining a data structure for representing the structure of the server data objects and the structure of the client data objects, the data object model further defining an interface for operating on the data objects and the structure of the server data objects and the structure of the client data objects.

5. The computer-implemented hardware system of claim 4, wherein the data objects represent user interface elements, and the data object model is a user interface object model.

6. The computer-implemented hardware system of claim 4, wherein the data objects represent data types, and the object model is a data type object model.

7. The computer-implemented hardware system of claim 4, wherein the data object model is an XML document object model.

12. The computer-implemented hardware system of claim 1, wherein the client data objects are stored on the client.

13. The computer-implemented hardware system of claim 1 wherein the server data objects are stored on the server.

14. The computer-implemented hardware system of claim 1, wherein the sub-structure level update type is for replacing the sub-structure of the specified client data object or server data object.

15. The computer-implemented hardware system of claim 1, wherein the sub-structure level update type is for deleting the sub-structure of the specified client data object or server data object.

16. The computer-implemented hardware system of claim 1, wherein the sub-structure level update type is for merging the sub-structure of the specified client data object or server data object with another sub-structure.

17. The computer-implemented hardware system of claim 1, wherein the client and server determine whether to use the object level update type or the sub-structure level update type command based on a bandwidth required to transmit the data object update commands.

18. The computer-implemented hardware system of claim 1, wherein either an object level update command or a sub-structure level update command is selected as the command for a particular update based on a number of operations that must be performed to process the selected command.

19. The computer-implemented hardware system of claim 1, wherein either an object level update command or a sub-structure level update command is selected by the processor as the command for a particular update based on a number of operations that must be performed to produce the selected update.

8. A computer program product, tangibly embodied in a computer-readable hardware medium, the computer program product comprising instructions for causing a processor to:

receive, at the processor, one or more modifications to a structure of server data objects; and

transmit, from the processor, a data object update command to a client, the data object update command for updating a structure of client data objects with the modifications to the structure of server data objects, the client data objects and the structure of client data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, wherein the two types of data object update commands are;

an object level update type for performing bidirectional updates between the server data objects and the client data objects for updating an entire specified client data object or an entire specified server data object; and

a sub-structure level update type for performing bidirectional updates between the server data objects and the client data objects for updating a sub-structure of a specified client data object or a specified server data object, the sub-structure being a subset of the specified client data object or the specified server data object;

receive one or more modifications to the structure of server data objects in response to a server operation,

determine, at the processor, whether to transmit the object level update type command or the sub-structure level update type command based on a predefined criteria and transmission requirements of the one or more modifications to the structure of server data objects; and

transmit, based on the determination, an update command of either the object level update type or the sub-structure level update type to update the structure of client data objects with the modifications to the structure of server data objects.

9. A computer program product, tangibly embodied in a computer-readable hardware medium, the computer program product comprising instructions for causing a processor to:

receive, at the processor, one or more modifications to a structure of client data objects;

transmit, from the processor, a data object update command to a server, the data object update command for updating a structure of server data objects with the modifications to the structure of client data objects, the server data objects and the structure of server data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, wherein the two types of data object update commands are;

an object level update type for performing bidirectional updates between the server data objects and the client data objects for updating an entire specified client data object or an entire specified server data object; and

a sub-structure level update type for performing bidirectional updates between the server data objects and the client data objects for updating a sub-structure of a specified client data object or a specified server data object, the sub-structure being a subset of the specified client data object or the specified server data object;

receive one or more modifications to the structure of server data objects in response to a server operation,

determine, at the processor, whether to transmit the object level update type command or the sub-structure level update type command based on a predefined criteria and transmission requirements of the one or more modifications to the structure of server data objects; and

transmit, based on the determination, an update command of either the object level update type or the sub-structure level update type to update the structure of client data objects with the modifications to the structure of server data objects.

10. A method comprising:

receiving one or more modifications to a structure of server data objects; and

transmitting a data object update command to a client, the data object update command for updating a structure of client data objects with the modifications to the structure of server data objects, the client data objects and the structure of client data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, wherein the two types of data object update commands are;

an object level update type for performing bidirectional updates between the server data objects and the client data objects for updating an entire specified client data object or an entire specified server data object; and

a sub-structure level update type for performing bidirectional updates between the server data objects and the client data objects for updating a sub-structure of a specified client data object or a specified server data object, the sub-structure being a subset of the specified client data object or the specified server data object;

receive one or more modifications to the structure of server data objects in response to a server operation,

determine, at the processor, whether to transmit the object level update type command or the sub-structure level update type command based on a predefined criteria and transmission requirements of the one or more modifications to the structure of server data objects; and

transmit, based on the determination, an update command of either the object level update type or the sub-structure level update type to update the structure of client data objects with the modifications to the structure of server data objects.

11. A method comprising:

receiving one or more modifications to a structure of client data objects; and

transmitting a data object update command to a server, the data object update command for updating a structure of server data objects with the modifications to the structure of client data objects, the server data objects and the structure of server data objects being managed through an implementation of a predefined application programming interface that implements at least two types of data object update commands, wherein the two types of data object update commands are;

an object level update type for performing bidirectional updates between the server data objects and the client data objects for updating an entire specified client data object or an entire specified server data object; and

a sub-structure level update type for performing bidirectional updates between the server data objects and the client data objects for updating a sub-structure of a specified client data object or a specified server data object, the sub-structure being a subset of the specified client data object or the specified server data object; and

receive one or more modifications to the structure of server data objects in response to a server operation,

determine, at the processor, whether to transmit the object level update type command or the sub-structure level update type command based on a predefined criteria and transmission requirements of the one or more modifications to the structure of server data objects; and

transmit, based on the determination, an update command of either the object level update type or the sub-structure level update type to update the structure of client data objects with the modifications to the structure of server data objects.