Class ClientUnobservableProperty

class sila2.client.ClientUnobservableProperty(parent_feature: ClientFeature, wrapped_property: UnobservableProperty)

Wraps an unobservable property

get(*, metadata: typing.Iterable[ClientMetadataInstance] | None = None) → ItemType

Get the current value

Parameters:

metadata – SiLA Client Metadata to send along with the subscription request

Returns:

value – Current property value

subscribe_by_polling(poll_interval: float, *, metadata: typing.Iterable[ClientMetadataInstance] | None = None) → Subscription[ItemType]

Subscribe to value updates by repeatedly calling get() in a background thread.

Parameters:

• poll_interval – Time in seconds between calling get()

• metadata – SiLA Client Metadata to send along with the subscription request

Returns:

subscription – Property value subscription

Notes

When receiving the same value multiple times in a row, it is only emitted once. This simulates the subscription behavior of observable properties, which can be used to “observe any change of its value”.