IFluidDataStoreContext Interface
Represents the context for the data store. It is used by the data store runtime to get information and call functionality to the container.
To use, import via @fluidframework/runtime-definitions/legacy.
For more information about our API support guarantees, see here.
Signature
export interface IFluidDataStoreContext extends IFluidParentContext
Extends: IFluidParentContext
Properties
| Property | Alerts | Modifiers | Type | Description |
|---|---|---|---|---|
| baseSnapshot | Alpha |
readonly |
ISnapshotTree | undefined | |
| createProps | Deprecated, Alpha |
optional, readonly |
any | |
| id | Alpha |
readonly |
string | |
| isLocalDataStore | Alpha |
readonly |
boolean | A data store created by a client, is a local data store for that client. Also, when a detached container loads from a snapshot, all the data stores are treated as local data stores because at that stage the container still doesn't exists in storage and so the data store couldn't have been created by any other client. Value of this never changes even after the data store is attached. As implementer of data store runtime, you can use this property to check that this data store belongs to this client and hence implement any scenario based on that. |
| packagePath | Alpha |
readonly |
readonly string[] | The package path of the data store as per the package factory. |
Methods
| Method | Alerts | Modifiers | Return Type | Description |
|---|---|---|---|---|
| createChildDataStore(childFactory) | Alpha |
optional |
ReturnType<Exclude<T["createDataStore"], undefined>> |
Synchronously creates a detached child data store. The In order for this function to succeed: 1. The parent data store's factory must also be an These invariants ensure that the child data store can also be created by a remote client running the same code as this client. |
| getBaseGCDetails() | Deprecated, Alpha |
Promise<IGarbageCollectionDetailsBase> |
Property Details
baseSnapshot
For more information about our API support guarantees, see here.
Signature
readonly baseSnapshot: ISnapshotTree | undefined;
Type: ISnapshotTree | undefined
createProps
0.16 Issue #1635, #3631
For more information about our API support guarantees, see here.
Signature
readonly createProps?: any;
Type: any
id
For more information about our API support guarantees, see here.
Signature
readonly id: string;
Type: string
isLocalDataStore
A data store created by a client, is a local data store for that client. Also, when a detached container loads from a snapshot, all the data stores are treated as local data stores because at that stage the container still doesn't exists in storage and so the data store couldn't have been created by any other client. Value of this never changes even after the data store is attached. As implementer of data store runtime, you can use this property to check that this data store belongs to this client and hence implement any scenario based on that.
For more information about our API support guarantees, see here.
Signature
readonly isLocalDataStore: boolean;
Type: boolean
packagePath
The package path of the data store as per the package factory.
For more information about our API support guarantees, see here.
Signature
readonly packagePath: readonly string[];
Type: readonly string[]
Method Details
createChildDataStore
Synchronously creates a detached child data store.
The createChildDataStore method allows for the synchronous creation of a detached child data store. This is particularly useful in scenarios where immediate availability of the child data store is required, such as during the initialization of a parent data store, or when creation is in response to synchronous user input.
In order for this function to succeed: 1. The parent data store's factory must also be an IFluidDataStoreRegistry. 2. The parent data store's registry must include the same instance as the provided child factory. 3. The parent data store's registry must synchronously provide the child factory via the getSync method. 4. The child factory must implement the createDataStore method.
These invariants ensure that the child data store can also be created by a remote client running the same code as this client.
For more information about our API support guarantees, see here.
Signature
createChildDataStore?<T extends IFluidDataStoreFactory>(childFactory: T): ReturnType<Exclude<T["createDataStore"], undefined>>;
Type Parameters
| Parameter | Constraint | Description |
|---|---|---|
| T | IFluidDataStoreFactory |
Parameters
| Parameter | Type | Description |
|---|---|---|
| childFactory | T | The factory of the data store to be created. |
Returns
The created data store channel.
Return type: ReturnType<Exclude<T["createDataStore"], undefined>>
getBaseGCDetails
The functionality to get base GC details has been moved to summarizer node.
Returns the GC details in the initial summary of this data store. This is used to initialize the data store and its children with the GC details from the previous summary.
For more information about our API support guarantees, see here.
Signature
getBaseGCDetails(): Promise<IGarbageCollectionDetailsBase>;
Returns
Return type: Promise<IGarbageCollectionDetailsBase>