Share project "druid" into "http://code.alibabatech.com/svn/druid"

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@2 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/PoolableWrapper.java

@@ -0,0 +1,55 @@
+/**
+ * Project: druid
+ * 
+ * File Created at 2011-2-24
+ * $Id$
+ * 
+ * Copyright 1999-2100 Alibaba.com Corporation Limited.
+ * All rights reserved.
+ *
+ * This software is the confidential and proprietary information of
+ * Alibaba Company. ("Confidential Information").  You shall not
+ * disclose such Confidential Information and shall use it only in
+ * accordance with the terms of the license agreement you entered into
+ * with Alibaba.com.
+ */
+package com.alibaba.druid.pool;
+
+import java.sql.SQLException;
+import java.sql.Wrapper;
+
+/**
+ * 
+ * @author shaojin.wensj
+ *
+ */
+public class PoolableWrapper implements Wrapper {
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		if (iface == null) {
+			return false;
+		}
+		
+		if (iface.isInstance(this)) {
+			return true;
+		}
+		
+		return false;
+	}
+
+	@SuppressWarnings("unchecked")
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		if (iface == null) {
+			return null;
+		}
+		
+		if (iface.isInstance(this)) {
+			return (T) this;
+		}
+		
+		return null;
+	}
+
+}