Initial EV files

2021-08-05 18:27:41 -04:00
commit 326a5bfdad
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+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Cache\Handlers;
+
+use Closure;
+
+/**
+ * Dummy cache handler
+ */
+class DummyHandler extends BaseHandler
+{
+	/**
+	 * Takes care of any handler-specific setup that must be done.
+	 */
+	public function initialize()
+	{
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Attempts to fetch an item from the cache store.
+	 *
+	 * @param string $key Cache item name
+	 *
+	 * @return null
+	 */
+	public function get(string $key)
+	{
+		return null;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Get an item from the cache, or execute the given Closure and store the result.
+	 *
+	 * @param string  $key      Cache item name
+	 * @param integer $ttl      Time to live
+	 * @param Closure $callback Callback return value
+	 *
+	 * @return null
+	 */
+	public function remember(string $key, int $ttl, Closure $callback)
+	{
+		return null;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Saves an item to the cache store.
+	 *
+	 * @param string  $key   Cache item name
+	 * @param mixed   $value The data to save
+	 * @param integer $ttl   Time To Live, in seconds (default 60)
+	 *
+	 * @return boolean Success or failure
+	 */
+	public function save(string $key, $value, int $ttl = 60)
+	{
+		return true;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Deletes a specific item from the cache store.
+	 *
+	 * @param string $key Cache item name
+	 *
+	 * @return boolean Success or failure
+	 */
+	public function delete(string $key)
+	{
+		return true;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Deletes items from the cache store matching a given pattern.
+	 *
+	 * @param string $pattern Cache items glob-style pattern
+	 *
+	 * @return integer The number of deleted items
+	 */
+	public function deleteMatching(string $pattern)
+	{
+		return 0;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Performs atomic incrementation of a raw stored value.
+	 *
+	 * @param string  $key    Cache ID
+	 * @param integer $offset Step/value to increase by
+	 *
+	 * @return boolean
+	 */
+	public function increment(string $key, int $offset = 1)
+	{
+		return true;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Performs atomic decrementation of a raw stored value.
+	 *
+	 * @param string  $key    Cache ID
+	 * @param integer $offset Step/value to increase by
+	 *
+	 * @return boolean
+	 */
+	public function decrement(string $key, int $offset = 1)
+	{
+		return true;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Will delete all items in the entire cache.
+	 *
+	 * @return boolean Success or failure
+	 */
+	public function clean()
+	{
+		return true;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Returns information on the entire cache.
+	 *
+	 * The information returned and the structure of the data
+	 * varies depending on the handler.
+	 *
+	 * @return null
+	 */
+	public function getCacheInfo()
+	{
+		return null;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Returns detailed information about the specific item in the cache.
+	 *
+	 * @param string $key Cache item name.
+	 *
+	 * @return null
+	 */
+	public function getMetaData(string $key)
+	{
+		return null;
+	}
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Determines if the driver is supported on this system.
+	 *
+	 * @return boolean
+	 */
+	public function isSupported(): bool
+	{
+		return true;
+	}
+}