Introduce Admin_Page_Factory interface.

Author: Felix Arntz

src/Admin_Page_Factory.php

@@ -0,0 +1,32 @@
+<?php
+/**
+ * Admin_Page_Factory interface
+ *
+ * @package Leaves_And_Love\OOP_Admin_Pages
+ * @since 1.0.0
+ */
+
+namespace Leaves_And_Love\OOP_Admin_Pages;
+
+use Leaves_And_Love\OOP_Admin_Pages\Exception\Config_Invalid_Exception;
+use BrightNucleus\Config\ConfigInterface as Config;
+
+/**
+ * Interface to create admin page instances.
+ *
+ * @since 1.0.0
+ */
+interface Admin_Page_Factory {
+
+	/**
+	 * Creates a new admin page instance.
+	 *
+	 * @since 1.0.0
+	 *
+	 * @param Config $config Admin page configuration.
+	 * @return Admin_Page Admin page instance.
+	 *
+	 * @throws Config_Invalid_Exception Thrown when the configuration is invalid.
+	 */
+	public function create_page( Config $config ) : Admin_Page;
+}