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<?php |
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/* |
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* This file is part of YaEtl |
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* (c) Fabrice de Stefanis / https://github.com/fab2s/YaEtl |
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* This source file is licensed under the MIT license which you will |
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* find in the LICENSE file or at https://opensource.org/licenses/MIT |
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*/ |
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namespace fab2s\YaEtl\Extractors; |
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use fab2s\NodalFlow\NodalFlowException; |
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use fab2s\NodalFlow\Nodes\AggregateNode; |
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use fab2s\NodalFlow\Nodes\AggregateNodeInterface; |
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use fab2s\NodalFlow\Nodes\PayloadNodeAbstract; |
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use fab2s\NodalFlow\Nodes\TraversableNodeInterface; |
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use fab2s\YaEtl\YaEtl; |
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use fab2s\YaEtl\YaEtlException; |
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/** |
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* class AggregateExtractor |
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*/ |
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class AggregateExtractor extends AggregateNode |
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{ |
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/** |
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* The underlying pseudo Flow |
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* |
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* @var YaEtl |
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*/ |
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protected $payload; |
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/** |
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* AggregateExtractor constructor. |
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* |
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* @param bool $isAReturningVal |
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* |
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* @throws NodalFlowException |
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*/ |
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public function __construct(bool $isAReturningVal) |
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{ |
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// bypass parent, go to grand pa'. DRY won over KISS |
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PayloadNodeAbstract::/* @scrutinizer ignore-call */__construct(new YaEtl, $isAReturningVal); |
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$this->isATraversable = true; |
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} |
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/** |
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* @param TraversableNodeInterface $node |
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* |
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* @throws NodalFlowException |
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* @throws YaEtlException |
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* |
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* @return static |
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*/ |
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public function addTraversable(TraversableNodeInterface $node): AggregateNodeInterface |
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{ |
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if (!($node instanceof ExtractorInterface)) { |
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throw new YaEtlException('AggregateExtractor only supports ExtractorInterface Nodes'); |
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} |
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$this->payload->from($node); |
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return $this; |
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} |
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} |
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