1 files changed, 34 insertions, 0 deletions
diff --git a/framework/IO/ITextWriter.php b/framework/IO/ITextWriter.php
new file mode 100644
index 00000000..d22e5cfe
--- /dev/null
+++ b/framework/IO/ITextWriter.php
@@ -0,0 +1,34 @@
+<?php
+/**
+ * Core interfaces essential for TApplication class.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005-2014 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @package Prado\IO
+ */
+
+namespace Prado\IO;
+
+/**
+ * ITextWriter interface.
+ *
+ * This interface must be implemented by writers.
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @package Prado\IO
+ * @since 3.0
+ */
+interface ITextWriter
+{
+	/**
+	 * Writes a string.
+	 * @param string string to be written
+	 */
+	public function write($str);
+	/**
+	 * Flushes the content that has been written.
+	 */
+	public function flush();
+}
+\ No newline at end of file