* This is the top-level interface for all other interfaces and should contain
* method stubs which is being used in every class
*
- * @author Roland Haeder <webmaster@ship-simu.org>
+ * @author Roland Haeder <webmaster@shipsimu.org>
* @version 0.0.0
- * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2011 Core Developer Team
+ * @copyright Copyright (c) 2007, 2008 Roland Haeder, 2009 - 2015 Core Developer Team
* @license GNU GPL 3.0 or any newer version
- * @link http://www.ship-simu.org
+ * @link http://www.shipsimu.org
* @todo Find a better name for this interface
*
* This program is free software: you can redistribute it and/or modify
*/
function getField ($fieldName);
+ /**
+ * Checks if given field is set
+ *
+ * @param $fieldName Field name to check
+ * @return $isSet Whether the given field name is set
+ * @throws NullPointerException If the result instance is null
+ */
+ function isFieldSet ($fieldName);
+
/**
* Checks whether an object equals this object. You should overwrite this
* method to implement own equality checks