1 files changed, 86 insertions, 0 deletions
diff --git a/lib/private/Memcache/Cache.php b/lib/private/Memcache/Cache.php
new file mode 100644
index 00000000000..774769b25fe
--- /dev/null
+++ b/lib/private/Memcache/Cache.php
@@ -0,0 +1,86 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\Memcache;
+
+/**
+ * @template-implements \ArrayAccess<string,mixed>
+ */
+abstract class Cache implements \ArrayAccess, \OCP\ICache {
+	/**
+	 * @var string $prefix
+	 */
+	protected $prefix;
+
+	/**
+	 * @param string $prefix
+	 */
+	public function __construct($prefix = '') {
+		$this->prefix = $prefix;
+	}
+
+	/**
+	 * @return string Prefix used for caching purposes
+	 */
+	public function getPrefix() {
+		return $this->prefix;
+	}
+
+	/**
+	 * @param string $key
+	 * @return mixed
+	 */
+	abstract public function get($key);
+
+	/**
+	 * @param string $key
+	 * @param mixed $value
+	 * @param int $ttl
+	 * @return mixed
+	 */
+	abstract public function set($key, $value, $ttl = 0);
+
+	/**
+	 * @param string $key
+	 * @return mixed
+	 */
+	abstract public function hasKey($key);
+
+	/**
+	 * @param string $key
+	 * @return mixed
+	 */
+	abstract public function remove($key);
+
+	/**
+	 * @param string $prefix
+	 * @return mixed
+	 */
+	abstract public function clear($prefix = '');
+
+	//implement the ArrayAccess interface
+
+	public function offsetExists($offset): bool {
+		return $this->hasKey($offset);
+	}
+
+	public function offsetSet($offset, $value): void {
+		$this->set($offset, $value);
+	}
+
+	/**
+	 * @return mixed
+	 */
+	#[\ReturnTypeWillChange]
+	public function offsetGet($offset) {
+		return $this->get($offset);
+	}
+
+	public function offsetUnset($offset): void {
+		$this->remove($offset);
+	}
+}