Menu
Important: This documentation is about an older version. It's relevant only to the release noted, many of the features and functions have been updated or replaced. Please view the current version.
Enterprise
Open source
FieldCache class
Signature
export declare class FieldCache Import
import { FieldCache } from '@grafana/data';Constructors
| Constructor | Modifiers | Description |
|---|---|---|
| constructor(data) | Constructs a new instance of the FieldCache class |
Properties
| Property | Modifiers | Type | Description |
|---|---|---|---|
| fields | FieldWithIndex[] |
Methods
| Method | Modifiers | Description |
|---|---|---|
| getFieldByName(name) | Returns the first field with the given name. | |
| getFields(type) | ||
| getFieldsByLabel(label, value) | Returns the fields with the given label. | |
| getFirstFieldOfType(type, includeHidden) | ||
| hasFieldNamed(name) | ||
| hasFieldOfType(type) | ||
| hasFieldWithNameAndType(name, type) |
constructor(data)
Constructs a new instance of the FieldCache class
Signature
constructor(data: DataFrame);Parameters
| Parameter | Type | Description |
|---|---|---|
| data | DataFrame |
fields property
Signature
fields: FieldWithIndex[];getFieldByName method
Returns the first field with the given name.
Signature
getFieldByName(name: string): FieldWithIndex | undefined;Parameters
| Parameter | Type | Description |
|---|---|---|
| name | string |
Returns:
FieldWithIndex | undefined
getFields method
Signature
getFields(type?: FieldType): FieldWithIndex[];Parameters
| Parameter | Type | Description |
|---|---|---|
| type | FieldType |
Returns:
FieldWithIndex[]
getFieldsByLabel method
Returns the fields with the given label.
Signature
getFieldsByLabel(label: string, value: string): FieldWithIndex[];Parameters
| Parameter | Type | Description |
|---|---|---|
| label | string | |
| value | string |
Returns:
FieldWithIndex[]
getFirstFieldOfType method
Signature
getFirstFieldOfType(type: FieldType, includeHidden?: boolean): FieldWithIndex | undefined;Parameters
| Parameter | Type | Description |
|---|---|---|
| type | FieldType | |
| includeHidden | boolean |
Returns:
FieldWithIndex | undefined
hasFieldNamed method
Signature
hasFieldNamed(name: string): boolean;Parameters
| Parameter | Type | Description |
|---|---|---|
| name | string |
Returns:
boolean
hasFieldOfType method
Signature
hasFieldOfType(type: FieldType): boolean;Parameters
| Parameter | Type | Description |
|---|---|---|
| type | FieldType |
Returns:
boolean
hasFieldWithNameAndType method
Signature
hasFieldWithNameAndType(name: string, type: FieldType): boolean;Parameters
| Parameter | Type | Description |
|---|---|---|
| name | string | |
| type | FieldType |
Returns:
boolean
Was this page helpful?
Related resources from Grafana Labs
Getting started with the Grafana LGTM Stack
In this webinar, we’ll demo how to get started using the LGTM Stack: Loki for logs, Grafana for visualization, Tempo for traces, and Mimir for metrics.
Getting started with Grafana dashboard design (EMEA Timezone)
In this webinar, you'll learn how to design stylish and easily accessible Grafana dashboards that tell a story.
Unify your data with Grafana plugins: Datadog, Splunk, MongoDB, and more
In this webinar, learn how to leverage Grafana's plugin ecosystem for access to 80+ data sources, including plugins for Datadog, Splunk, MongoDB, and more.