DataSource

Interface

The interface for all data sources.

Conceptually, we have four types of data sources but all of them are created as data source object:

Main data source: the data source user added in data panel.
Data view: the data view user created in data panel.
Local data source: when multiple widgets connnect to a main data source or a data view, they'll share the same data records. If you need to use a local data copy, you can create a local data source from a main data source by using DataSourceManager.getInstance().createLocalDataSource().
Local data view: a local data source created from a data view.

Data view, local data source or local data view derived from the same main data source will share the same schema, same selection records, but may have different data records. The schema is in main data source only.

To share the selection between data source and view, we create a selection data view when creating the data source. The selection data source view ID is: ${dataSourceId}-selection. When selecting records, the selected records are copied to the selection data view.

Subclasses: QueriableDataSource, AbstractArcGISLayerFolderDataSource

Properties

Property	Type	Notes
`belongToDataSource`	`DataSource`	The data source which this data source derives from.
`count`	`number`	The total records count depends on the current query
`dataViewId`	`string`	The data view ID configured in Json.
`id`	`string`	The data source ID.
`isDataSourceSet`	`boolean`	Whether a data source contains child data sources. A dataset data source should create all its child data sources before `ready()` is resolved.
`isDataView`	`boolean`	True means the data source is a data view. For local data source, this is false even the local data source is created from a data view.
`isLocal`	`boolean`	True means the data source is a local data source.
`localId`	`string`	The local ID of the data source.
`order`	`number`	Order in the parent data source.
`parentDataSource`	`DataSource`	The parent data source of this data source, mull means it's a root data source.
`type`	`string`	The type of the data source

belongToDataSource

optional

Interface Property

belongToDataSource: DataSource

The data source which this data source derives from.

count

optional

Interface Property

count: number

The total records count depends on the current query

dataViewId

optional

Interface Property

dataViewId: string

The data view ID configured in Json.

id

Interface Property

id: string

The data source ID.

isDataSourceSet

Interface Property

isDataSourceSet: boolean

Whether a data source contains child data sources. A dataset data source should create all its child data sources before ready() is resolved.

isDataView

Interface Property

isDataView: boolean

True means the data source is a data view. For local data source, this is false even the local data source is created from a data view.

isLocal

Interface Property

isLocal: boolean

True means the data source is a local data source.

localId

optional

Interface Property

localId: string

The local ID of the data source.

order

optional

Interface Property

order: number

Order in the parent data source.

parentDataSource

Interface Property

parentDataSource: DataSource

The parent data source of this data source, mull means it's a root data source.

type

Interface Property

type: string

The type of the data source

Methods

Method	Returns	Notes
`addSourceVersion()`	`void`	When current data source is created from an array of records, it will be saved in `sourceRecords`. Add the version of `sourceRecords`.`setSourceRecords` will add the version by default.
`addVersion()`	`void`	Update data source version.
`buildRecord(data)`	`DataRecord`	Builds a data record only -- does not add the record into data source.
`clearRecords()`	`void`	This function will clear the loaded records and won't clear the sourceRecords. Once the loaded records are cleared, the version in the data source info will be updated.
`clearSourceRecords()`	`void`	Clear both sourceRecords and loaded records. Both source version and version in data source info will be updated.
`fetchSchema()`	`Promise<IMDataSourceSchema>`	Fetch the data schema from an actual data source. If it's a statistic data source, the schema will not be fetched.
`getAllChildDataSources()`	`DataSource[]`	Return all child data sources of a parent data source, includes the grandchildren
`getAllDerivedDataSources()`	`DataSource[]`	Return the derived data views and local data sources.
`getChildDataSource(jimuChildId)`	`DataSource`	Get child data source by `jimuChildId`. You can get `jimuChildId` by `getJimuChildId()`.
`getChildDataSources()`	`DataSource[]`	Return child data sources of a parent data source.
`getCountStatus()`	`DataSourceStatus`	Return data source count status.
`getDataSourceJson()`	`IMDataSourceJson`	The data source JSON object in app config.
`getDataView(dataViewId)`	`DataSource`	Get data view by data view ID.
`getDataViews()`	`DataSource[]`	Return all data views created from a main data source.
`getIdField()`	`string`	Return the data source ID field.
`getInfo()`	`IMDataSourceInfo`	Return the data source info in redux store.
`getLabel()`	`string`	Return data source label.
`getListenSelection()`	`boolean`	Return whether listen selection.
`getLocalDataSource(localId)`	`DataSource`	Get local data source by local ID.
`getLocalDataSources()`	`DataSource[]`	Return all local data sources created from a main data source or data view.
`getMainDataSource()`	`DataSource`	Return the main data source.
`getRecord(index)`	`DataRecord`	Get record by index
`getRecordById(id)`	`DataRecord`	Get record by ID
`getRecords()`	`DataRecord[]`	Get records
`getRecordsWithSelection()`	`DataRecord[]`	If selected records are not loaded in the current data source, they will be concatenated to the end of records array. For example, record 1 is selected in data view 1 and it is not loaded in data view 2 (record 1 actually matches query params of data view 2), dataView2.getRecordsWithSelection() will return all loaded records in data view 2 and record 1.
`getRootDataSource()`	`DataSource`	Return the root data source.
`getSchema()`	`IMDataSourceSchema`	The schema returned here is the merged result of the configured schema and the fetched schema.
`getSelectedRecordIds()`	`string[]`	Get selected record IDs
`getSelectedRecordIndexes()`	`number[]`	Get selected record indexes
`getSelectedRecords()`	`DataRecord[]`	Get selected records
`getSourceRecords()`	`DataRecord[]`	Return the source records
`getSourceVersion()`	`number`	When current data source is created from an array of records, it will be saved in `sourceRecords`. Return the version of `sourceRecords`.
`getStatus()`	`DataSourceStatus`	Return data source status.
`getVersion()`	`number`	Return data source version.
`isInAppConfig()`	`boolean`	Return whether the data source is added in builder and is saved in app config.
`ready()`	`Promise<any>`	Ready is resolved means the data source instance is ready for use.
`selectRecordById(id, record?, forceCheck?)`	`void`	Select a record by ID. When select record by ID, we can pass in the record. So when the selected record is not loaded, we can add it in. If `forceCheck` is true, will check whether the record match filters of the data source or not. Will select the record only if the check is passed.
`selectRecordsByIds(ids, records?, forceCheck?)`	`void`	Select records by IDs. When select records by IDs, we can pass in the records. So when the selected records are not loaded, we can add them in. If `forceCheck` is true, will check whether these records match filters of the data source or not. Will select the records which check is passed.
`setCountStatus(status)`	`void`	Update data source count status.
`setDataSourceJson(dsJson)`	`void`	Update data source JSON in data source instance
`setListenSelection(listen)`	`void`	Whether listen selected records from other data sources which are derived from the same main data source. If true, will update selected record IDs of current data source info when selecting records via other derived data sources. Will also update selected record IDs when selecting records via current data source itself. If false, won't change selected record IDs when selecting records via other derived data sources. Will update selected record IDs only when selecting records via current data source itself.
`setRecords(records)`	`void`	Update the records in the data source object only, does not update the source data. See DataSourceEditSourceOperations.updateRecords
`setSourceRecords(records)`	`void`	When current data source is created from an array of records, will save it in `sourceRecords`. These two methods are use to update or get the source data.
`setStatus(status)`	`void`	Update data source status.
`updateSelectionInfo(ids, triggerDataSource, forceCheck?)`	`void`	Update selected record IDs in data source info if the current data source listens selection change (see `setListenSelection`) or the current data source is the trigger data source (that is to say, select via it).

addSourceVersion

Interface Method

addSourceVersion(): void

When current data source is created from an array of records, it will be saved in sourceRecords. Add the version of sourceRecords.setSourceRecords will add the version by default.

Returns

void

addVersion

optional

Interface Method

addVersion(): void

Update data source version.

Returns

void

buildRecord

Interface Method

buildRecord(data: any): DataRecord

Builds a data record only -- does not add the record into data source.

Parameters

Parameter	Type
`data`	any

Returns

DataRecord

clearRecords

optional

Interface Method

clearRecords(): void

This function will clear the loaded records and won't clear the sourceRecords. Once the loaded records are cleared, the version in the data source info will be updated.

Returns

void

clearSourceRecords

Interface Method

clearSourceRecords(): void

Clear both sourceRecords and loaded records. Both source version and version in data source info will be updated.

Returns

void

fetchSchema

Interface Method

fetchSchema(): Promise<IMDataSourceSchema>

Fetch the data schema from an actual data source. If it's a statistic data source, the schema will not be fetched.

Returns

Promise<IMDataSourceSchema>

getAllChildDataSources

optional

Interface Method

getAllChildDataSources(): DataSource[]

Return all child data sources of a parent data source, includes the grandchildren

Returns

DataSource[]

getAllDerivedDataSources

Interface Method

getAllDerivedDataSources(): DataSource[]

Return the derived data views and local data sources.

Returns

DataSource[]

getChildDataSource

optional

Interface Method

getChildDataSource(jimuChildId: string): DataSource

Get child data source by jimuChildId. You can get jimuChildId by getJimuChildId().

Parameters

Parameter	Type
`jimuChildId`	string

Returns

DataSource

getChildDataSources

optional

Interface Method

getChildDataSources(): DataSource[]

Return child data sources of a parent data source.

Returns

DataSource[]

getCountStatus

Interface Method

getCountStatus(): DataSourceStatus

Return data source count status.

Returns

DataSourceStatus

getDataSourceJson

Interface Method

getDataSourceJson(): IMDataSourceJson

The data source JSON object in app config.

Returns

IMDataSourceJson

getDataView

Interface Method

getDataView(dataViewId: string): DataSource

Get data view by data view ID.

Parameters

Parameter	Type
`dataViewId`	string

Returns

DataSource

getDataViews

Interface Method

getDataViews(): DataSource[]

Return all data views created from a main data source.

Returns

DataSource[]

getIdField

Interface Method

getIdField(): string

Return the data source ID field.

Returns

string

getInfo

Interface Method

getInfo(): IMDataSourceInfo

Return the data source info in redux store.

Returns

IMDataSourceInfo

getLabel

Interface Method

getLabel(): string

Return data source label.

Returns

string

getListenSelection

Interface Method

getListenSelection(): boolean

Return whether listen selection.

Returns

boolean

getLocalDataSource

Interface Method

getLocalDataSource(localId: string): DataSource

Get local data source by local ID.

Parameters

Parameter	Type
`localId`	string

Returns

DataSource

getLocalDataSources

Interface Method

getLocalDataSources(): DataSource[]

Return all local data sources created from a main data source or data view.

Returns

DataSource[]

getMainDataSource

Interface Method

getMainDataSource(): DataSource

Return the main data source.

Returns

DataSource

getRecord

Interface Method

getRecord(index: number): DataRecord

Get record by index

Parameters

Parameter	Type
`index`	number

Returns

DataRecord

getRecordById

Interface Method

getRecordById(id: string): DataRecord

Get record by ID

Parameters

Parameter	Type
`id`	string

Returns

DataRecord

getRecords

Interface Method

getRecords(): DataRecord[]

Get records

Returns

DataRecord[]

getRecordsWithSelection

Interface Method

getRecordsWithSelection(): DataRecord[]

If selected records are not loaded in the current data source, they will be concatenated to the end of records array. For example, record 1 is selected in data view 1 and it is not loaded in data view 2 (record 1 actually matches query params of data view 2), dataView2.getRecordsWithSelection() will return all loaded records in data view 2 and record 1.

Returns

DataRecord[]

getRootDataSource

Interface Method

getRootDataSource(): DataSource

Return the root data source.

Returns

DataSource

getSchema

Interface Method

getSchema(): IMDataSourceSchema

The schema returned here is the merged result of the configured schema and the fetched schema.

Returns

IMDataSourceSchema

getSelectedRecordIds

optional

Interface Method

getSelectedRecordIds(): string[]

Get selected record IDs

Returns

string[]

getSelectedRecordIndexes

optional

Interface Method

getSelectedRecordIndexes(): number[]

Get selected record indexes

Returns

number[]

getSelectedRecords

optional

Interface Method

getSelectedRecords(): DataRecord[]

Get selected records

Returns

DataRecord[]

getSourceRecords

Interface Method

getSourceRecords(): DataRecord[]

Return the source records

Returns

DataRecord[]

getSourceVersion

Interface Method

getSourceVersion(): number

When current data source is created from an array of records, it will be saved in sourceRecords. Return the version of sourceRecords.

Returns

number

getStatus

Interface Method

getStatus(): DataSourceStatus

Return data source status.

Returns

DataSourceStatus

getVersion

Interface Method

getVersion(): number

Return data source version.

Returns

number

isInAppConfig

Interface Method

isInAppConfig(): boolean

Return whether the data source is added in builder and is saved in app config.

Returns

boolean

ready

Interface Method

ready(): Promise<any>

Ready is resolved means the data source instance is ready for use.

Returns

Promise<any>

selectRecordById

optional

Interface Method

selectRecordById(id: string, record?: DataRecord, forceCheck?: boolean): void

Select a record by ID. When select record by ID, we can pass in the record. So when the selected record is not loaded, we can add it in. If forceCheck is true, will check whether the record match filters of the data source or not. Will select the record only if the check is passed.

Parameters

Parameter	Type	Notes
`id`	string	The ID to be selected. The selection will be cleared if the ID is null.
`record`	DataRecord
`forceCheck`	boolean

Returns

void

selectRecordsByIds

optional

Interface Method

selectRecordsByIds(ids: string[], records?: DataRecord[], forceCheck?: boolean): void

Select records by IDs. When select records by IDs, we can pass in the records. So when the selected records are not loaded, we can add them in. If forceCheck is true, will check whether these records match filters of the data source or not. Will select the records which check is passed.

Parameters

Parameter	Type	Notes
`ids`	string[]	The IDs to be selected. The selection will be cleared if the IDs are null.
`records`	DataRecord[]
`forceCheck`	boolean

Returns

void

setCountStatus

optional

Interface Method

setCountStatus(status: DataSourceStatus): void

Update data source count status.

Parameters

Parameter	Type
`status`	DataSourceStatus

Returns

void

setDataSourceJson

Interface Method

setDataSourceJson(dsJson: IMDataSourceJson): void

Update data source JSON in data source instance

Parameters

Parameter	Type
`dsJson`	IMDataSourceJson

Returns

void

setListenSelection

Interface Method

setListenSelection(listen: boolean): void

Whether listen selected records from other data sources which are derived from the same main data source. If true, will update selected record IDs of current data source info when selecting records via other derived data sources. Will also update selected record IDs when selecting records via current data source itself. If false, won't change selected record IDs when selecting records via other derived data sources. Will update selected record IDs only when selecting records via current data source itself.

Main data source and its data views will listen selected records by default, local data source does not listen selected records by default.

Parameters

Parameter	Type
`listen`	boolean

Returns

void

setRecords

Interface Method

setRecords(records: DataRecord[]): void

Update the records in the data source object only, does not update the source data. See DataSourceEditSourceOperations.updateRecords

Parameters

Parameter	Type
`records`	DataRecord[]

Returns

void

setSourceRecords

Interface Method

setSourceRecords(records: DataRecord[]): void

When current data source is created from an array of records, will save it in sourceRecords. These two methods are use to update or get the source data.

Parameters

Parameter	Type
`records`	DataRecord[]

Returns

void

setStatus

optional

Interface Method

setStatus(status: DataSourceStatus): void

Update data source status.

Parameters

Parameter	Type
`status`	DataSourceStatus

Returns

void

updateSelectionInfo

optional

Interface Method

updateSelectionInfo(ids: string[], triggerDataSource: DataSource, forceCheck?: boolean): void

Update selected record IDs in data source info if the current data source listens selection change (see setListenSelection) or the current data source is the trigger data source (that is to say, select via it).

Before update info, will check whether these selected records match filters of the current data source firstly, and then only set the matched selected records to info. Will skip the check in some cases to improve performance if the forceCheck is not passed in or is false. For example, if the curren data source is main data source (we suppose that main data source contains all records, no need to check). But if the forceCheck is true, won't skip the check.

Parameters

Parameter	Type
`ids`	string[]
`triggerDataSource`	DataSource
`forceCheck`	boolean

Returns

void

ArcGIS Experience BuilderAPI Reference

DataSource

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