SYSTEM AND METHOD FOR ACCESSING DATA OBJECTS VIA REMOTE REFERENCES

• US 20130232220A1
• Filed: 03/02/2012
• Published: 09/05/2013
• Est. Priority Date: 03/02/2012
• Status: Active Grant

• Current Assignee: Palantir Technologies Incorporated
• Original Assignee: Palantir Technologies Incorporated
• Inventors: SAMPSON, ZACHARY LEWIS
• Granted Patent: US 9,378,526 B2
• Time in Patent Office: Days
• US Class Current: 709/217
• CPC Class Codes: G06F 16/252 between a Database Management System and a front-end application
• CPC Class Codes: G06Q 40/04 Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46
• CPC Class Codes: H04L 67/1031 Controlling of the operation of servers by a load balancer, e.g. adding or removing servers that serve requests
• CPC Class Codes: H04L 67/56 Provisioning of proxy services store-and-forward switching systems in data switching networks H04L12/54
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70

Abstract

One embodiment of the present invention sets forth a method for providing access to a data object stored on an application server from within a client side machine. The method includes creating a remote reference that is linked to the data object, transmitting the remote reference to an application executing on a second machine, receiving an expression to evaluate that includes the remote reference, accessing at least one element included in the data object via the remote reference, evaluating the expression based on the at least one element to produce a result, and transmitting the result to the application.

Claims

1. A method for accessing a data object stored on a first machine, the method comprising:

creating a remote reference that is linked to the data object;

transmitting the remote reference to an application executing on a second machine;

receiving an expression to evaluate that includes the remote reference;

accessing at least one element included in the data object via the remote reference;

evaluating the expression based on the at least one element to produce a result; and

transmitting the result to the application.

2. The method of claim 1, further comprising generating a ticket that references the data object.

3. The method of claim 2, further comprising creating a proxy data object based on the ticket that exposes a plurality of elements included in the data object, including the at least one element, to the application.

4. The method of claim 3, wherein the remote reference comprises a wrapper corresponding to the proxy data object and is linked to the data object via the proxy data object.

5. The method of claim 4, wherein evaluating the expression comprises transmitting a first call to the proxy data object for accessing the at least one element that is then forwarded to the data object to access the at least one element.

6. The method of claim 5, wherein the expression is further evaluated based on a value that is retrieved from the data object when at least one element is accessed.

7. The method of claim 3, further comprising determining, after the proxy data object is garbage collected, that no other proxy data objects reference the data object, and de-allocating a portion of memory allocated to the data object.

8. The method of claim 1, wherein the at least one element comprises a property associated with the data object.

9. The method of claim 1, wherein the at least one element comprises a method that is performed on one or more properties associated with the data object.

10. The method of claim 1, wherein the remote reference includes at least one property that is associated with the data object and can be accessed by the application without requesting access to the data object.

11. A computer readable medium for storing instructions that, when executed by a processor, cause the processor to access a data object stored on a first machine, by performing the steps of:

creating a remote reference that is linked to the data object;

transmitting the remote reference to an application executing on a second machine;

receiving an expression to evaluate that includes the remote reference;

accessing at least one element included in the data object via the remote reference;

evaluating the expression based on the at least one element to produce a result; and

transmitting the result to the application.

12. The computer readable medium of claim 11, further comprising generating a ticket that references the data object.

13. The computer readable medium of claim 12, further comprising creating a proxy data object based on the ticket that exposes a plurality of elements included in the data object, including the at least one element, to the application.

14. The computer readable medium of claim 13, wherein the remote reference comprises a wrapper corresponding to the proxy data object and is linked to the data object via the proxy data object.

15. The computer readable medium of claim 14, wherein evaluating the expression comprises transmitting a first call to the proxy data object for accessing the at least one element that is then forwarded to the data object to access the at least one element.

16. The computer readable medium of claim 15, wherein the expression is further evaluated based on a value that is retrieved from the data object when at least one element is accessed.

17. The computer readable medium of claim 13, further comprising determining, after the proxy data object is garbage collected, that no other proxy data objects reference the data object, and de-allocating a portion of memory allocated to the data object.

18. The computer readable medium of claim 11, wherein the at least one element comprises a property associated with the data object.

19. The computer readable medium of claim 11, wherein the at least one element comprises a method that is performed on one or more properties associated with the data object.

20. A computer system, comprising:

a memory; and

a processor configured to;

create a remote reference that is linked to the data object,

transmit the remote reference to an application executing on a second machine,

receive an expression to evaluate that includes the remote reference,

access at least one element included in the data object via the remote reference,

evaluate the expression based on the at least one element to produce a result, and

transmit the result to the application.