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| <?php declare(strict_types = 1); | |
| /* | |
| * Copyright (c) 2019, Josef Kufner <josef@kufner.cz> | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| * | |
| */ | |
| namespace Smalldb\StateMachine\Definition; | |
| /** | |
| * Definition of a state machine transition. | |
| * | |
| * There may be multiple definitions of transitions with same names | |
| * but different source states. | |
| */ | |
| class TransitionDefinition extends ExtensibleDefinition | |
| { | |
| private string $name; | |
| private StateDefinition $sourceState; | |
| /** @var StateDefinition[] */ | |
| private array $targetStates; | |
| /** | |
| * TransitionDefinition constructor. | |
| * | |
| * @param string $name | |
| * @param StateDefinition $sourceState | |
| * @param array $targetStates | |
| * @param ExtensionInterface[] $extensions | |
| * @internal | |
| */ | |
| public function __construct(string $name, StateDefinition $sourceState, array $targetStates, array $extensions = []) | |
| { | |
| parent::__construct($extensions); | |
| $this->name = $name; | |
| $this->sourceState = $sourceState; | |
| $this->targetStates = $targetStates; | |
| } | |
| public function getName(): string | |
| { | |
| return $this->name; | |
| } | |
| /** | |
| * Get source states of the transition. | |
| */ | |
| public function getSourceState(): StateDefinition | |
| { | |
| return $this->sourceState; | |
| } | |
| /** | |
| * Get target states for the given source state. | |
| * | |
| * @return StateDefinition[] | |
| */ | |
| public function getTargetStates(): array | |
| { | |
| return $this->targetStates; | |
| } | |
| public function jsonSerialize() | |
| { | |
| $obj = get_object_vars($this); | |
| $obj['sourceState'] = $this->sourceState->getName(); | |
| $obj['targetStates'] = array_values(array_map(function(StateDefinition $s) { return $s->getName(); }, $this->targetStates)); | |
| return array_merge($obj, parent::jsonSerialize()); | |
| } | |
| } |