One class per file: framework/Data

1 files changed, 51 insertions, 0 deletions

diff --git a/framework/Data/SqlMap/DataMapper/TSqlMapLruCache.php b/framework/Data/SqlMap/DataMapper/TSqlMapLruCache.php
new file mode 100644
index 00000000..e34cad84
--- /dev/null
+++ b/framework/Data/SqlMap/DataMapper/TSqlMapLruCache.php
@@ -0,0 +1,51 @@
+<?php
+/**
+ * TSqlMapCache class file contains FIFO, LRU, and GLOBAL cache implementations.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package System.Data.SqlMap
+ */
+
+/**
+ * Least recently used cache implementation, removes
+ * object that was accessed last when the cache is full.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @package System.Data.SqlMap
+ * @since 3.1
+ */
+class TSqlMapLruCache extends TSqlMapCache
+{
+	/**
+	 * @return mixed Gets a cached object with the specified key.
+	 */
+	public function get($key)
+	{
+		if($this->_keyList->contains($key))
+		{
+			$this->_keyList->remove($key);
+			$this->_keyList->add($key);
+			return $this->_cache->itemAt($key);
+		}
+	}
+
+	/**
+	 * Stores a value identified by a key into cache.
+	 * The expire and dependency parameters are ignored.
+	 * @param string the key identifying the value to be cached
+	 * @param mixed the value to be cached
+	 */
+	public function set($key, $value,$expire=0,$dependency=null)
+	{
+		$this->_cache->add($key, $value);
+		$this->_keyList->add($key);
+		if($this->_keyList->getCount() > $this->_cacheSize)
+		{
+			$oldestKey = $this->_keyList->removeAt(0);
+			$this->_cache->remove($oldestKey);
+		}
+	}
+}
\ No newline at end of file