Package com.couchbase.lite.internal.utils

Class StateMachine.Builder<S extends Enum<S>>

java.lang.Object

com.couchbase.lite.internal.utils.StateMachine.Builder<S>

Enclosing class:

StateMachine<T extends Enum<T>>

public static class StateMachine.Builder<S extends Enum<S>>
extends Object

Constructor Summary

Constructors

Constructor	Description
Builder(Class<S> klass, S initialState, S errorState)	State machine builder.

Method Summary

Modifier and Type	Method	Description
StateMachine.Builder<S>	addTransition(S source, S target1, S... targets)	Add arcs to the DAG.
StateMachine<S>	build()	Create the state machine.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Builder

public Builder(@NonNull
               Class<S> klass,
               @NonNull
               S initialState,
               @Nullable
               S errorState)

State machine builder. The error state is treated specially: it is always legal to transition into the error state and never legal to transfer out of it.

Parameters:

klass - The class of the enum of states.

initialState - The start state for the machine.

errorState - The machine error state.

Method Detail

addTransition

@NonNull
@SafeVarargs
public final StateMachine.Builder<S> addTransition(@NonNull
                                                   S source,
                                                   @NonNull
                                                   S target1,
                                                   @NonNull
                                                   S... targets)

Add arcs to the DAG. I believe that the use of varargs is, in fact, safe.

Parameters:

source - of the arcs.

target1 - the end of the first arc

targets - the ends of other arcs

build

@NonNull
public StateMachine<S> build()

Create the state machine.

Returns:

a new state machine instance.