Dep
Related Docs:
object Dep
| package reactify
Convenience method to send a value to set similarly to an assignment operator.
Convenience method to send a value to set similarly to an assignment operator.
the value to apply
Attaches a function to listen to values fired against this Observable.
Attaches a function to listen to values fired against this Observable.
function listener
the supplied function. This reference is useful for detaching the function later
Works similarly to attach, but also references the previous value that was fired.
Works similarly to attach, but also references the previous value that was fired. This is useful when you need
to handle changes, not just new values.
the ChangeListener
the listener attached. This can be passed to detach to remove this listener
Clears all attached observers from this Observable.
Clears all attached observers from this Observable.
Detaches a function from listening to this Observable.
Detaches a function from listening to this Observable.
function listener that was previously attached
Cleans up all cross references in preparation for releasing for GC.
Cleans up all cross references in preparation for releasing for GC.
Returns a Future[T] that represents the value of the next firing of this Observable.
Returns a Future[T] that represents the value of the next firing of this Observable.
the condition under which the listener will be invoked. Defaults to always return true.
Direct attachment of a listener.
Direct attachment of a listener.
the listener to attach
the same listener supplied
Works like attach, but doesn't receive the fired value.
Works like attach, but doesn't receive the fired value.
function to invoke on fire
listener
Invokes the listener only one time and then detaches itself.
Invokes the listener only one time and then detaches itself. If supplied, the condition filters the scenarios in which the listener will be invoked.
the function listener
the condition under which the listener will be invoked. Defaults to always return true.
Fires the value to all attached listeners.
Dep is very much like a
Val, but is also aChannel. The basic purpose is to represent a value dependent upon another variable. An example of this might be if you are representing a positionleftand you also wanted to representrightas well (which would beleft+width). These two variables are dependent upon each other and don't fit well asVars. An example usage might be:val left: Var[Double] = Var(0.0) val width: Var[Double] = Var(0.0) val right: Dep[Double, Double] = Dep(left, width)If an instance is
submissiveit removesadjustmentfrom being part of the mutation dependency. For example: in the above scenario if you setwidthto 100.0 andrightto 125.0 thenleftwill be 25.0. Now, what should happen if you changewidthto 50.0? Shouldleftchange to 75.0 (submissive = false) or shouldrightchange to 75.0 (submissive = true)?