API / geotoolkit / data / DataSource / DataSource
data.DataSource.DataSource
Define Abstract Data Model
↳
DataSource↳↳
DataSet
Constructors
- [new DataSource()](/solutions/geotoolkit/GeoToolkit_JS/apis/classes/geotoolkit.data.datasource.datasource.md#new datasource())
Methods
Methods
▸ addChild(data): DataSource
Add a child object
| Name | Type | Description |
|---|---|---|
data | DataObject | DataObject[] | the child data to be added |
this
▸ beginUpdate(): DataSource
begin transaction
this
▸ clearChildren(): DataSource
Remove all child data
this
▸ dispose(): void
Dispose.
void
▸ endUpdate(): DataSource
end transaction
▸ getChild(i): DataObject
Return data by index
| Name | Type | Description |
|---|---|---|
i | number | index of the data |
▸ getChildrenCount(): number
Return number of child data
number
▸ getClassName(): string
string
▸ hasEventListener(type, callback?): boolean
Check if a list of event listeners for this type contains this listener
| Name | Type | Description |
|---|---|---|
type | string | type of event or property |
Optional callback | Function | to be called, if null, check if any callback is registered |
boolean
EventDispatcher.hasEventListener
▸ isDisposed(): boolean
Returns whether this object has been disposed
boolean
▸ isSilent(): boolean
Return true if the event dispatcher doesn't notify any events
boolean
▸ notify<E>(type, source, args?): DataSource
Notify listeners
| Name | Type |
|---|---|
E | extends string |
| Name | Type | Description |
|---|---|---|
type | E | event types |
source | DataSource | of the event |
Optional args | EventMap[E] | arguments of the event |
this
▸ off<E>(type?, callback?): DataSource
Detach listener on event. Calling .off() with no arguments removes all attached listeners. Calling .off(type) with no callback removes all attached listeners for specific type.
| Name | Type |
|---|---|
E | extends string |
| Name | Type | Description |
|---|---|---|
Optional type | E | type of the event |
Optional callback | (eventType: E, sender: DataSource, args: EventMap[E]) => void | function to be called |
this
▸ on<E>(type, callback): DataSource
Attach listener on event that will be called whenever the specified event is delivered to the target <p> If the callback function is already in the list of event listeners for this target, the function is not added a second time. </p> <p> If a particular anonymous function is in the list of event listeners registered for a certain target, and then later in the code, an identical anonymous function is given in an "on" call, the second function will also be added to the list of event listeners for that target. </p>
| Name | Type |
|---|---|
E | extends string |
| Name | Type | Description |
|---|---|---|
type | E | type of event or property |
callback | (eventType: E, sender: DataSource, args: EventMap[E]) => void | to be called |
this
▸ query(): QueryBuilder<any>
Query data object items
QueryBuilder<any>
▸ removeChild(data): DataSource
Remove child data object
| Name | Type | Description |
|---|---|---|
data | DataObject | data to be removed |
this
▸ setSilent(bool): DataSource
Set silent mode
| Name | Type | Description |
|---|---|---|
bool | boolean | flag to enable silent mode |
this
▸ update(): DataSource
Load a part of the data
this
▸ Static getClassName(): string
string