Universal automatic data update detection and publication

Patent metadata

Field	Value
Publication number	US-11995101-B2
Application number	US-202017070703-A
Country	US
Kind code	B2
Filing date	Oct 14, 2020
Priority date	Nov 2, 2015
Publication date	May 28, 2024
Grant date	May 28, 2024

Abstract

Universal automatic data update detection and publication may include receiving a request for requested information, which includes an information element associated with a structured data location in a structured data storage unit, identifying a predicate referencing the structured data location, including the predicate in a predicates registry by compiling the predicate into an intermediate representation, creating an asynchronous message bus channel corresponding to the predicate, detecting a data operation for the structured data storage unit, wherein the information element is associated with the data operation, evaluating the intermediate representation, determining a predicate domain change type corresponding to the data operation, generating a change notification including an indication of the change type, and publishing the change notification to the asynchronous message bus channel such that a presentation via the client device is updated in response to the change notification.

First claim

What is claimed is:

1. A system, comprising:
a processor; and
a memory, accessible by the processor, the memory storing instructions, that when executed by the processor, cause the processor to perform operations comprising:
receiving, from a display device, a request for data to be displayed by the display device;
transmitting, to the display device, the requested data, wherein the display device is configured to display the requested data prior to registering the requested data in a database;
after transmitting the requested data to the display device:
registering a predicate associated with the requested data in a predicates registry, wherein registering the predicate comprises unifying the predicate with at least a second predicate in the predicates registry into an intermediate tree representation, and wherein the predicate references a structured data location in the database and corresponds to an abstraction of a logical condition or statement configured to be evaluated, based on information stored in the database, to a defined result;
creating a message bus channel corresponding to the predicate and subscribing the display device to the message bus channel after registering the predicate in the predicates registry and after transmitting the requested data to the display device;
detecting a data operation configured to modify the requested data;
determining a type of modification to the requested data based on whether a value of the predicate of the intermediate tree representation matches the data operation before modification of the requested data by the data operation and the value of the predicate of the intermediate tree representation does not match the data operation after modification of the requested data by the data operation; and
publishing a notification to the message bus channel including an indication of the type of modification to the requested data, such that the requested data displayed by the display device is updated after receiving the notification.

2. The system of claim 1 , wherein additional data displayed by a second display device associated with the second predicate is updated after publishing the notification to the message bus channel.

3. The system of claim 1 , wherein the message bus channel is an asynchronous message bus channel, wherein the operations comprise:
receiving, from the display device, an input indicative of cessation of displaying the requested data; and
unsubscribing the display device from the asynchronous message bus channel.

4. The system of claim 1 , wherein the operations comprise removing one or more inactive predicates from the predicates registry based on a cardinality of the one or more inactive predicates.

5. The system of claim 1 , wherein detecting the data operation comprises intercepting a request to perform the data operation prior to execution of the data operation.

6. A method, comprising:
receiving, by one or more processors from a display device, a request for data configured to be displayed by the display device;
transmitting, by the one or more processors to the display device, the requested data, wherein the display device is configured to display the requested data prior to registering the requested data in a database;
after transmitting the requested data to the display device:
registering, by the one or more processors, a predicate associated with the requested data in a predicates registry, wherein registering the predicate comprises unifying the predicate with at least a second predicate in the predicates registry into an intermediate tree representation, and wherein the predicate references a structured data location in the database and corresponds to an abstraction of a logical condition or statement configured to be evaluated, based on information stored in the database, to a defined result;
creating, by the one or more processors, a message bus channel corresponding to the predicate and subscribing the display device to the message bus channel after storing the predicate in the predicates registry and after transmitting the requested data to the display device;
detecting, by the one or more processors, a data operation configured to modify the requested data;
determining, by the one or more processors, a type of modification to the requested data based on whether a value of the predicate of the intermediate tree representation does not match the data operation before modification of the requested data by the data operation and the value of the predicate of the intermediate tree representation matches the data operation after modification of the requested data by the data operation; and
publishing, by the one or more processors, a notification to the message bus channel including an indication of the type of modification to the requested data, such that the requested data displayed by the display device is updated after receiving the notification.

7. The method of claim 6 , wherein additional data displayed by a second display device associated with the second predicate is updated after publishing the notification to the message bus channel.

8. The method of claim 6 , wherein the message bus channel is an asynchronous message bus channel, wherein the method comprises:
receiving, by the one or more processors from the display device, an input indicative of cessation of displaying the requested data; and
unsubscribing, by the one or more processors, the display device from the asynchronous message bus channel.

9. The method of claim 6 , comprising removing, by the one or more processors, one or more inactive predicates from the predicates registry based on a cardinality of the one or more inactive predicates.

10. The method of claim 6 , wherein detecting the data operation comprises intercepting a request to perform the data operation prior to execution of the data operation.

11. A non-transitory, computer-readable medium, comprising instructions that when executed by one or more processors, cause the one or more processors to perform operations comprising:
receiving, from a display device, a request for data configured to be displayed by the display device;
transmitting, to the display device, the requested data, wherein the display device is configured to display the requested data prior to registering the requested data in a database;
after transmitting the requested data to the display device:
registering a predicate associated with the requested data in a predicates registry, wherein registering the predicate comprises unifying the predicate with at least a second predicate in the predicates registry into an intermediate tree representation, and wherein the predicate references a structured data location in the database and corresponds to an abstraction of a logical condition or statement configured to be evaluated, based on information stored in the database, to a defined result;
creating a message bus channel corresponding to the predicate and subscribing the display device to the message bus channel after storing the predicate in the predicates registry and after transmitting the requested data to the display device;
detecting a data operation configured to modify the requested data;
determining a type of modification to the requested data based on:
whether a value of the predicate of the intermediate tree representation matches the data operation before modification of the requested data by the data operation and after modification of the requested data by the data operation, whether the value of the predicate of the intermediate tree representation matches the data operation before modification of the requested data by the data operation and the value of the predicate of the int

Assignees

• Servicenow Inc

Inventors

• Hastie Matthew Duncan
• Lee Jennifer
• Bahry Brent
• Laethem Jared

Classifications

• G06F16/273 Primary

  Asynchronous replication or reconciliation · CPC title

• G06F16/00

  Information retrieval; Database structures therefor; File system structures therefor · CPC title

• G06F16/2358

  Change logging, detection, and notification (replication G06F16/27) · CPC title

• G06F9/542 Primary

  Event management; Broadcasting; Multicasting; Notifications · CPC title