Adds configurable message back

Author: sagikazarmark

src/Message/Configurable.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * This file is part of the Http Adapter package.
+ *
+ * (c) Eric GELOEN <[email protected]>
+ *
+ * For the full copyright and license information, please read the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Http\Adapter\Message;
+
+/**
+ * Allows to modify configuration in a message an immutable way
+ *
+ * @author Márk Sági-Kazár [email protected]>
+ */
+interface Configurable
+{
+    /**
+     * Returns an option by name
+     *
+     * @param string $name
+     *
+     * @return mixed
+     */
+    public function getOption($name);
+
+    /**
+     * Returns all options
+     *
+     * @return array
+     */
+    public function getOptions();
+
+    /**
+     * Checks if an option exists
+     *
+     * @param string $name
+     *
+     * @return boolean
+     */
+    public function hasOption($name);
+
+    /**
+     * Checks if any option exists
+     *
+     * @return boolean
+     */
+    public function hasOptions();
+
+    /**
+     * Sets an option
+     *
+     * @param string $name
+     * @param mixed  $option
+     *
+     * @return self
+     */
+    public function withOption($name, $option);
+
+    /**
+     * Removes an option
+     *
+     * @param string $name
+     *
+     * @return self
+     */
+    public function withoutOption($name);
+}