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application/Espo/ORM/Value/ValueAccessorFactory.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\ORM\Value;
+
+use Espo\ORM\Entity;
+use Espo\ORM\EventDispatcher;
+
+class ValueAccessorFactory
+{
+    private ?GeneralValueFactory $generalValueFactory = null;
+    private ?GeneralAttributeExtractor $generalAttributeExtractor = null;
+
+    /**
+     * @param AttributeExtractorFactory<object> $attributeExtractorFactory
+     */
+    public function __construct(
+        private ValueFactoryFactory $valueFactoryFactory,
+        private AttributeExtractorFactory $attributeExtractorFactory,
+        private EventDispatcher $eventDispatcher
+    ) {
+
+        $this->subscribeToMetadataUpdate();
+    }
+
+    public function create(Entity $entity): ValueAccessor
+    {
+        return new ValueAccessor(
+            $entity,
+            $this->getGeneralValueFactory(),
+            $this->getGeneralAttributeExtractor()
+        );
+    }
+
+    private function getGeneralValueFactory(): GeneralValueFactory
+    {
+        if (!$this->generalValueFactory) {
+            $this->generalValueFactory = new GeneralValueFactory($this->valueFactoryFactory);
+        }
+
+        return $this->generalValueFactory;
+    }
+
+    private function getGeneralAttributeExtractor(): GeneralAttributeExtractor
+    {
+        if (!$this->generalAttributeExtractor) {
+            $this->generalAttributeExtractor = new GeneralAttributeExtractor($this->attributeExtractorFactory);
+        }
+
+        return $this->generalAttributeExtractor;
+    }
+
+    private function subscribeToMetadataUpdate(): void
+    {
+        $this->eventDispatcher->subscribeToMetadataUpdate(
+            function () {
+                $this->generalValueFactory = null;
+                $this->generalAttributeExtractor = null;
+            }
+        );
+    }
+}