Class FeatureStream

A read-only stream of features.

Hierarchy (view full)

EntityBase<FeatureStreamProperties>
- FeatureStream

Implements

AsyncIterable<Feature>

Constructors

constructor

new FeatureStream(arg?): FeatureStream
Parameters
- Optionalarg: AsyncIterable<Feature, any, any> | Iterable<Feature, any, any> | FeatureStreamProperties
Returns FeatureStream
Overrides EntityBase.constructor

Properties

`Protected` `Readonly`_handles

_handles: Handles<unknown, ResourceHandle>

`Protected`_id

_id: string

The unique ID for this entity. Once set, this should never change.

`Protected` `Readonly`_itemType

_itemType: FEATURE_STREAM = ItemType.FEATURE_STREAM

The item type for this entity when it participates in an App.

@eventTypes

@eventTypes: InitializableBaseEvents

Deprecated

Do not directly reference this property. Use EventNames and EventTypes helpers from @arcgis/core/Evented.

title

title: string

A human readable title describing the feature results.

Accessors

failureMode

get failureMode(): FailureMode
Determines how a parent object should handle initialization failure in this object. The default is "warn".
- "error": support/InitializeError!InitializeError is thrown.
- "warn": Message is logged and support/InitializableBase!InitializeWarningEvent is raised.
- "ignore": support/InitializableBase!InitializeWarningEvent is raised.
Returns FailureMode
Inherited from EntityBase.failureMode
set failureMode(value): void
Parameters
- value: FailureMode
Returns void
Inherited from EntityBase.failureMode

id

get id(): string
The unique ID for this entity.

Returns string
Inherited from EntityBase.id

isDestroyed

get isDestroyed(): boolean
See support/InitializableBase!Initializable.isDestroyed.

Returns boolean
Inherited from EntityBase.isDestroyed

isInitialized

get isInitialized(): boolean
See support/InitializableBase!Initializable.isInitialized.

Returns boolean
Inherited from EntityBase.isInitialized

itemType

get itemType(): string
The item type for this entity when it participates in an App.

Returns string
Inherited from EntityBase.itemType

Methods

`Protected`_getSerializableProperties

_getSerializableProperties(): PropertyDefs<FeatureStreamProperties>
The property keys and their metadata that are used to implement serializing and deserializing the class instance.

Returns PropertyDefs<FeatureStreamProperties>
Overrides EntityBase._getSerializableProperties

`Protected`_initializableChildCollections

_initializableChildCollections(): IterableIterator<Collection<InitializableBase<InitializableBaseProperties>>, any, any>
Collections of child items to initialize. Items that fail to initialize are removed from the collection.

Returns IterableIterator<Collection<InitializableBase<InitializableBaseProperties>>, any, any>
Inherited from EntityBase._initializableChildCollections

`Protected`_initializeChildren

_initializeChildren(): Promise<void>
Initializes child entities.

Returns Promise<void>
Inherited from EntityBase._initializeChildren

`Protected`_onDestroy

_onDestroy(): Promise<void>
Called to perform cleanup. Subclasses should override this method rather than destroy() to perform custom cleanup.

Returns Promise<void>
Inherited from EntityBase._onDestroy

`Protected`_onInitialize

_onInitialize(): Promise<void>
Called to perform initialization of the support/InitializableBase!InitializableBase. Subclasses should override this method rather than initialize() to perform custom initialization.

Returns Promise<void>
Inherited from EntityBase._onInitialize

`Protected`_postInitialize

_postInitialize(): Promise<void>
Called after normal initialization. Note: Child items are initialized before this is called.

Returns Promise<void>
Inherited from EntityBase._postInitialize

`Protected`_toPropertyDef

_toPropertyDef<T>(def): PropertyDef<T>
Converts the value to a PropertyDef object.
Type Parameters
- T
Parameters
- def: PropertyDefSerializeMode | PropertyDefSerializeMode[] | PropertyDef<T>
  The value to convert.
Returns PropertyDef<T>
Inherited from EntityBase._toPropertyDef

[asyncIterator]

[asyncIterator](): AsyncIterator<Feature, any, any>
Provides AsyncIterable functionality.

Returns AsyncIterator<Feature, any, any>
Implementation of AsyncIterable.[asyncIterator]

assignProperties

assignProperties(properties): void
Parameters
- properties: Partial<FeatureStreamProperties>
Returns void
Inherit Doc
Inherited from EntityBase.assignProperties

assignPropertiesAsync

assignPropertiesAsync(properties): Promise<void>
Parameters
- properties: Partial<FeatureStreamProperties>
Returns Promise<void>
Inherit Doc
Inherited from EntityBase.assignPropertiesAsync

destroy

destroy(): Promise<void>
A clean-up function that should get called whenever the item is disposed of.

Returns Promise<void>
Inherited from EntityBase.destroy

finishAssignProperties

finishAssignProperties(): Promise<void>
Returns Promise<void>
Inherit Doc
Inherited from EntityBase.finishAssignProperties

getDefault

getDefault<K>(key): FeatureStreamProperties[K]
Type Parameters
- K extends keyof FeatureStreamProperties
Parameters
- key: K
Returns FeatureStreamProperties[K]
Inherit Doc
Inherited from EntityBase.getDefault

getDefaults

getDefaults(): FeatureStreamProperties
Returns FeatureStreamProperties
Inherit Doc
Inherited from EntityBase.getDefaults

getSerializableProperties

getSerializableProperties(serializeMode?): PropertyDefs<FeatureStreamProperties>
Returns the serializable properties.
Parameters
- OptionalserializeMode: SerializeMode
  Optional. If specified, only properties that support the given serialization mode will be returned.
Returns PropertyDefs<FeatureStreamProperties>
Inherited from EntityBase.getSerializableProperties

initialize

initialize(): Promise<void>
Initializes the item.

Returns Promise<void>
Inherited from EntityBase.initialize

toArray

toArray(): Promise<Feature[]>
Reads the stream into an array.

Returns Promise<Feature[]>

toFeatureSet

toFeatureSet(): Promise<FeatureSet>
Reads the stream into a FeatureSet.

Returns Promise<FeatureSet>

toItemUri

toItemUri(): string
Creates an item:// URI reference to this entity.

Returns string
Inherited from EntityBase.toItemUri

toJSON

toJSON(serializeMode?): FeatureStreamProperties
Parameters
- serializeMode: SerializeMode = "all"
Returns FeatureStreamProperties
Inherit Doc
Inherited from EntityBase.toJSON

Class FeatureStream

Hierarchy (view full)

Implements

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Returns FeatureStream

Properties

Protected Readonly_handles

Protected_id

Protected Readonly_itemType

@eventTypes

Deprecated

title

Accessors

failureMode

Returns FailureMode

Parameters

Returns void

id

Returns string

isDestroyed

Returns boolean

isInitialized

Returns boolean

itemType

Returns string

Methods

Protected_getSerializableProperties

Returns PropertyDefs<FeatureStreamProperties>

Protected_initializableChildCollections

Returns IterableIterator<Collection<InitializableBase<InitializableBaseProperties>>, any, any>

Protected_initializeChildren

Returns Promise<void>

Protected_onDestroy

Returns Promise<void>

Protected_onInitialize

Returns Promise<void>

Protected_postInitialize

Returns Promise<void>

Protected_toPropertyDef

Type Parameters

Parameters

Returns PropertyDef<T>

[asyncIterator]

Returns AsyncIterator<Feature, any, any>

assignProperties

Parameters

Returns void

Inherit Doc

assignPropertiesAsync

Parameters

Returns Promise<void>

Inherit Doc

destroy

Returns Promise<void>

finishAssignProperties

Returns Promise<void>

Inherit Doc

getDefault

Type Parameters

Parameters

Returns FeatureStreamProperties[K]

Inherit Doc

getDefaults

Returns FeatureStreamProperties

Inherit Doc

getSerializableProperties

Parameters

Returns PropertyDefs<FeatureStreamProperties>

initialize

Returns Promise<void>

toArray

Returns Promise<Feature[]>

toFeatureSet

`Protected` `Readonly`_handles

`Protected`_id

`Protected` `Readonly`_itemType

`Protected`_getSerializableProperties

`Protected`_initializableChildCollections

`Protected`_initializeChildren

`Protected`_onDestroy

`Protected`_onInitialize

`Protected`_postInitialize

`Protected`_toPropertyDef