Initial Version

shared/lib/Resource/Selector/EntitySelector.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: Sebastian Krupinski <krupinski01@gmail.com>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace KTXF\Resource\Selector;
+
+/**
+ * Entity-level selector (leaf node)
+ */
+class EntitySelector extends SelectorAbstract {
+
+	protected array $keyTypes = ['string', 'integer'];
+	protected array $valueTypes = ['boolean', 'array', 'string', 'integer'];
+	protected string $selectorName = 'EntitySelector';
+
+	public function append($value): void {
+		if (!is_string($value) && !is_int($value)) {
+			throw new \InvalidArgumentException('EntitySelector values must be string or int');
+		}
+		parent::append($value);
+	}
+
+	public function offsetSet($key, $value): void {
+		if ($key !== null && !is_int($key)) {
+			throw new \InvalidArgumentException('EntitySelector does not support associative keys');
+		}
+		if (!is_string($value) && !is_int($value)) {
+			throw new \InvalidArgumentException('EntitySelector values must be string or int');
+		}
+		parent::offsetSet($key, $value);
+	}
+
+	/**
+	 * Get all entity identifiers
+	 * @return array<string|int>
+	 */
+	public function identifiers(): array {
+		return $this->getArrayCopy();
+	}
+
+}