com.github.pnavais.machine.impl

Class StateTransitionValidator

java.lang.Object

com.github.pnavais.machine.impl.StateTransitionValidator

All Implemented Interfaces:

TransitionValidator<State,Message,StateTransition>

public class StateTransitionValidator
extends Object
implements TransitionValidator<State,Message,StateTransition>

Implementation of the transition validator for state transitions. Validation is executed in a two step process. Initially all components of the transition are validated and later the actual operation is validated. This validator poses no restrictions when adding transitions although the latter are searched in the transition when trying to remove them. In case validation fails, by default ValidationException are raised automatically.

Nested Class Summary

Nested classes/interfaces inherited from interface com.github.pnavais.machine.api.validator.TransitionValidator

TransitionValidator.FailurePolicy, TransitionValidator.Operation

Constructor Summary

Constructors

Constructor and Description
StateTransitionValidator()

Method Summary

Modifier and Type	Method and Description
ValidationResult	validate(StateTransition transition, TransitionIndex<State,Message,StateTransition> transitionIndex, TransitionValidator.Operation operation) Checks the transition parameter correctness with respect to current transitions on the given index before applying the operation.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.pnavais.machine.api.validator.TransitionValidator

getFailurePolicy

Constructor Detail

StateTransitionValidator

public StateTransitionValidator()

Method Detail

validate

public ValidationResult validate(StateTransition transition,
                                 TransitionIndex<State,Message,StateTransition> transitionIndex,
                                 TransitionValidator.Operation operation)

Checks the transition parameter correctness with respect to current transitions on the given index before applying the operation.

Specified by:

validate in interface TransitionValidator<State,Message,StateTransition>

Parameters:

transition - the transition to check

transitionIndex - the transition index

operation - the operation to accomplish

Returns:

the validation result