Dep allows creation of a dependent Var on another Var allowing conversion between the two. This can be useful for different representations of the same value. For example, in a graphical environment left, center, and right are all different representations of the value (horizontal position). Maintaining three distinct values while keeping them in-sync is painful. With Dep you can simply define one Var and two Dep values like:
val left: Var[Double] = Var(0.0) val width: Var[Double] = Var(0.0) val center: Dep[Double, Double] = Dep(left)(_ + (width / 2.0), _ - (width / 2.0)) val right: Dep[Double, Double] = Dep(left)(_ + width, _ - width)
Now, modification to left, center, or right will maintain the appropriate value for each without any additional boilerplate.
Type parameters
- R
-
the type that this Dep receives
- T
-
the type of value this Reactive receives
Attributes
- Companion
- object
- Graph
-
- Supertypes
Members list
Value members
Concrete methods
Gets the current value
Inherited methods
Convenience functionality to assign the result of a future (upon completion) to this Channel
Convenience functionality to assign the result of a future (upon completion) to this Channel
Attributes
- Inherited from:
- Mutable
Group multiple Statefuls together
Convenience alternative to "set"
Convenience alternative to "static"
Group multiple Statefuls together
Convenience wrapper around get
Convenience method to create a Reaction to attach to this Reactive
Convenience method to create a Reaction to attach to this Reactive
Value parameters
- f
-
the function reaction
- priority
-
the priority in comparison to other reactions (Defaults to Priority.Normal)
Attributes
- Returns
-
created Reaction[T]
- Inherited from:
- Reactive
Convenience functionality to attach a Reaction and immediately fire the current state on the Reaction.
Convenience functionality to attach a Reaction and immediately fire the current state on the Reaction.
Value parameters
- f
-
the function reaction
- priority
-
the priority in comparison to other reactions (Defaults to Priority.Normal)
Attributes
- Returns
-
Reaction[T]
- Inherited from:
- Stateful
Convenience method to create a Reaction to monitor changes to this Reactive
Convenience method to create a Reaction to monitor changes to this Reactive
Value parameters
- f
-
the function reaction to receive changes
- priority
-
the priority in comparison to other reactions (Defaults to Priority.Normal)
Attributes
- Returns
-
created Reaction[T]
- Inherited from:
- Reactive
Convenience method to create a Future[T] that will complete upon the next reaction that meets to supplied condition.
Convenience method to create a Future[T] that will complete upon the next reaction that meets to supplied condition.
Value parameters
- condition
-
optional condition that must be true for this to fire (Defaults to accept anything)
Attributes
- Returns
-
Future[T]
- Inherited from:
- Reactive
Convenience method to create a Reaction to monitor changes to this Reactive when you don't care about the actual value.
Convenience method to create a Reaction to monitor changes to this Reactive when you don't care about the actual value.
Value parameters
- f
-
the function reaction to invoke in reaction to a value received
- priority
-
the priority in comparison to other reactions (Defaults to Priority.Normal)
Attributes
- Returns
-
created Reaction[T]
- Inherited from:
- Reactive
Convenience method to create a Reaction to monitor a single reaction based on an optional condition.
Convenience method to create a Reaction to monitor a single reaction based on an optional condition.
Value parameters
- condition
-
optional condition that must be true for this to fire (Defaults to accept anything)
- f
-
the function reaction
- priority
-
the priority in comparison to other reactions (Defaults to Priority.Normal)
Attributes
- Returns
-
created Reaction[T]
- Inherited from:
- Reactive
Sets a static value representing the new value for this mutable entity
Sets a static value representing the new value for this mutable entity
Attributes
- Inherited from:
- Mutable
If the current thread is reacting to a value currently, status represents the status of the reaction. This can be set to ReactionStatus.Stop in order to stop propagation. This can also be achieved via stopPropagation().
If the current thread is reacting to a value currently, status represents the status of the reaction. This can be set to ReactionStatus.Stop in order to stop propagation. This can also be achieved via stopPropagation().
Attributes
- Inherited from:
- Reactive
Attributes
- Inherited from:
- Reactive
Shortcut functionality to call status = ReactionStatus.Stop