de.learnlib.api

Interface StateLocalInputSUL<I,O>

Type Parameters:

I - input symbol type

O - output symbol type

All Superinterfaces:

SUL<I,O>

public interface StateLocalInputSUL<I,O>
extends SUL<I,O>

A System Under Learning (SUL) which can additionally report the inputs that the SUL can process in its current state, i.e. inputs that will not trigger a SULException when used in the next invocation of the SUL.step(Object) method return an otherwise "undefined" behavior.

Author:

Maren Geske, frohme

Method Summary

Modifier and Type	Method and Description
Collection<I>	currentlyEnabledInputs() Returns the enabled symbols for the current state of the SUL.
default StateLocalInputSUL<I,O>	fork() Forks this SUL, if possible.

Methods inherited from interface de.learnlib.api.SUL

canFork, post, pre, step

Method Detail

currentlyEnabledInputs

Collection<I> currentlyEnabledInputs()

Returns the enabled symbols for the current state of the SUL.

Returns:

the currently enabled inputs

Throws:

SULException - if the SUL cannot provide information about the currently enabled inputs

fork

default StateLocalInputSUL<I,O> fork()

Description copied from interface: SUL

Forks this SUL, if possible. The fork of a SUL is a copy which behaves exactly the same as this SUL. This method should always return a reseted SUL, regardless of whether this call is made between a call to SUL.pre() and SUL.post().

If SUL.canFork() returns true, this method must return a non-null object, which should behave exactly like this SUL (in particular, it must be forkable as well). Otherwise, a UnsupportedOperationException must be thrown.

Implementation note: if resetting a SUL changes the internal state of this object in a non-trivial way (e.g., incrementing a counter to ensure independent sessions), care must be taken that forks of this SUL manipulate the same internal state.

Specified by:

fork in interface SUL<I,O>

Returns:

a fork of this SUL.