io.hektor.fsm.builder.exceptions

Class TransientLoopDetectedException

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

io.hektor.fsm.builder.exceptions.FSMBuilderException

io.hektor.fsm.builder.exceptions.StateBuilderException

io.hektor.fsm.builder.exceptions.TransientLoopDetectedException

All Implemented Interfaces:

Serializable

public class TransientLoopDetectedException
extends StateBuilderException

If you would be able to specify a transition from a transient state to another transient state (or itself) you will likely end up in a loop. When the FSM is being built, this scenario is checked and if detected this exception will be thrown. Note: if you were to have an action along with the transition then I guess you could mutate some internal state variable and as such break the loop but that is too hard to guarantee so for now we will simply just not allow it. That includes a transient state A having a transition to another transient state B. In this last case one could argue unless the transient state B then loops back to A we should allow it, but again, too complicated to keep track of and I wonder if there is a real need for it. If it is, we'll revisit.

Author:

jonas@jonasborjesson.com

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class io.hektor.fsm.builder.exceptions.FSMBuilderException

FSMBuilderException.ErrorCode

Constructor Summary

Constructors

Constructor and Description
TransientLoopDetectedException(Enum state)

Method Summary

Methods inherited from class io.hektor.fsm.builder.exceptions.StateBuilderException

getState

Methods inherited from class io.hektor.fsm.builder.exceptions.FSMBuilderException

getErrorCode

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

TransientLoopDetectedException

public TransientLoopDetectedException(Enum state)