支持HA

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@460 b9813039-fb51-4c41-a8b9-e21c2acb5095

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

@@ -6,7 +6,8 @@ import java.sql.SQLException;
 
 import javax.sql.DataSource;
 
-public class DataSourceAdapter implements DataSource {
+public class DataSourceAdapter extends WrapperAdapter implements DataSource {
+
     private int         loginTimeout = 0;
     private PrintWriter logWriter    = new PrintWriter(System.out);
 
@@ -33,33 +34,6 @@ public class DataSourceAdapter implements DataSource {
         return loginTimeout;
     }
 
-    @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;
-    }
-
     @Override
     public Connection getConnection() throws SQLException {
         throw new UnsupportedOperationException();