Interface StateUpdater<T,S>
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- All Superinterfaces:
Operation,Serializable
public interface StateUpdater<T,S> extends Operation
Interface for updating state.
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Method Summary
All Methods Static Methods Instance Methods Abstract Methods Modifier and Type Method Description Sapply(S state, T value)Returns a new state by applying the value on the current state.Sinit()The initial value of the state to start with.static <T,S>
StateUpdater<T,S>of(S initialValue, BiFunction<? super S,? super T,? extends S> stateUpdateFn)A static factory to create aStateUpdaterbased on an initial value of the state and a state update function.
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Method Detail
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of
static <T,S> StateUpdater<T,S> of(S initialValue, BiFunction<? super S,? super T,? extends S> stateUpdateFn)
A static factory to create aStateUpdaterbased on an initial value of the state and a state update function.- Parameters:
initialValue- the intial value of the statestateUpdateFn- the state update function- Returns:
- the
StateUpdater
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init
S init()
The initial value of the state to start with.- Returns:
- the initial value of the state
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