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<?php declare(strict_types=1); |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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namespace Cycle\ORM\Command\Branch; |
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use Cycle\ORM\Command\CommandInterface; |
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use Cycle\ORM\Command\ContextCarrierInterface; |
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use Cycle\ORM\Exception\CommandException; |
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use Cycle\ORM\Heap\State; |
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/** |
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* Wraps the sequence with commands and provides an ability to mock access to the primary command. |
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*/ |
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final class ContextSequence implements CommandInterface, \IteratorAggregate, \Countable |
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{ |
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/** @var ContextCarrierInterface */ |
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protected $primary; |
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/** @var CommandInterface[] */ |
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protected $commands = []; |
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/** |
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* Add primary command to the sequence. |
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* |
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* @param ContextCarrierInterface $command |
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*/ |
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public function addPrimary(ContextCarrierInterface $command) |
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{ |
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$this->addCommand($command); |
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$this->primary = $command; |
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} |
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/** |
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* @return ContextCarrierInterface |
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*/ |
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public function getPrimary(): ContextCarrierInterface |
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{ |
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if (empty($this->primary)) { |
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throw new CommandException("Primary sequence command is not set"); |
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} |
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return $this->primary; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function waitContext(string $key, bool $required = true) |
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{ |
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return $this->getPrimary()->waitContext($key, $required); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getContext(): array |
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{ |
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return $this->getPrimary()->getContext(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function register( |
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string $key, |
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$value, |
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bool $fresh = false, |
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int $stream = State::DATA |
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) { |
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$this->getPrimary()->register($key, $value, $fresh, $stream); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function isExecuted(): bool |
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{ |
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return false; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function isReady(): bool |
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{ |
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// always ready since check will be delegated to underlying nodes |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function addCommand(CommandInterface $command) |
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{ |
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if ($command instanceof Nil) { |
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return; |
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} |
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$this->commands[] = $command; |
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} |
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/** |
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* Get array of underlying commands. |
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* |
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* @return CommandInterface[] |
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*/ |
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public function getCommands(): array |
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{ |
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return $this->commands; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator(): \Generator |
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{ |
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foreach ($this->commands as $command) { |
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if ($command instanceof \Traversable) { |
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yield from $command; |
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continue; |
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} |
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yield $command; |
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} |
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} |
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/** |
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* @return int |
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*/ |
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public function count(): int |
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{ |
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return count($this->commands); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function execute() |
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{ |
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// nothing |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function complete() |
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{ |
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// nothing |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function rollBack() |
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{ |
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// nothing |
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} |
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} |
cycle /
orm
