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Interface IManager

Object which manages kernel instances for a given base url.

Notes

The manager is responsible for maintaining the state of running kernels and the initial fetch of kernel specs.

Hierarchy

  • IDisposable
    • IManager

Implemented by

Index

Properties

connectionFailure

connectionFailure: ISignal<IManager, NetworkError>

A signal emitted when there is a connection failure.

isDisposed

isDisposed: boolean

Test whether the object has been disposed.

Notes

This property is always safe to access.

isReady

isReady: boolean

Whether the manager is ready.

ready

ready: Promise<void>

A promise that resolves when the manager is initially ready.

runningChanged

runningChanged: ISignal<IManager, IModel[]>

A signal emitted when the running kernels change.

Optional serverSettings

serverSettings: ISettings

The server settings for the manager.

specs

specs: ISpecModels | null

The kernel spec models.

Notes

The value will be null until the manager is ready.

specsChanged

specsChanged: ISignal<IManager, ISpecModels>

A signal emitted when the kernel specs change.

Methods

connectTo

  • Connect to an existing kernel.

    Parameters

    • model: IModel

      The model of the target kernel.

    Returns IKernel

    A promise that resolves with the new kernel instance.

dispose

  • dispose(): void
  • Dispose of the resources held by the object.

    Notes

    If the object's dispose method is called more than once, all calls made after the first will be a no-op.

    Undefined Behavior

    It is undefined behavior to use any functionality of the object after it has been disposed unless otherwise explicitly noted.

    Returns void

findById

  • findById(id: string): Promise<IModel>
  • Find a kernel by id.

    Parameters

    • id: string

      The id of the target kernel.

    Returns Promise<IModel>

    A promise that resolves with the kernel's model.

refreshRunning

  • refreshRunning(): Promise<void>
  • Force a refresh of the running kernels.

    Returns Promise<void>

    A promise that resolves when the models are refreshed.

    Notes

    This is intended to be called only in response to a user action, since the manager maintains its internal state.

refreshSpecs

  • refreshSpecs(): Promise<void>
  • Force a refresh of the specs from the server.

    Returns Promise<void>

    A promise that resolves when the specs are fetched.

    Notes

    This is intended to be called only in response to a user action, since the manager maintains its internal state.

running

  • running(): IIterator<IModel>
  • Create an iterator over the known running kernels.

    Returns IIterator<IModel>

    A new iterator over the running kernels.

shutdown

  • shutdown(id: string): Promise<void>
  • Shut down a kernel by id.

    Parameters

    • id: string

      The id of the target kernel.

    Returns Promise<void>

    A promise that resolves when the operation is complete.

shutdownAll

  • shutdownAll(): Promise<void>
  • Shut down all kernels.

    Returns Promise<void>

    A promise that resolves when all of the kernels are shut down.

startNew

  • Start a new kernel.

    Parameters

    • Optional options: IOptions

      The kernel options to use.

    Returns Promise<IKernel>

    A promise that resolves with the kernel instance.

    Notes

    The manager serverSettings will be always be used.

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