diff -r 000000000000 -r fb9019fb1bf7 src/net/fortuna/ical4j/model/ParameterFactory.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/net/fortuna/ical4j/model/ParameterFactory.java	Tue Feb 10 18:12:00 2015 +0100
@@ -0,0 +1,66 @@
+/**
+ * Copyright (c) 2012, Ben Fortuna
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  o Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ *  o Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ *  o Neither the name of Ben Fortuna nor the names of any other contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*
+ * TODO To change the template for this generated file go to
+ * Window - Preferences - Java - Code Style - Code Templates
+ */
+package net.fortuna.ical4j.model;
+
+import java.io.Serializable;
+import java.net.URISyntaxException;
+
+
+/**
+ * Implementors provide parameter creation services.
+ * 
+ * Note that implementations must be {@link Serializable} to support referencing
+ * from {@link Parameter} instances.
+ * 
+ * @author Ben Fortuna
+ * 
+ * $Id$ [05-Apr-2004]
+ * 
+ * Created on 14/06/2005
+ *
+ */
+public interface ParameterFactory extends Serializable {
+
+    /**
+     * Returns a parameter instance of the appropriate type with the specified value.
+     * @param name a parameter names that identifies the parameter type
+     * @param value a value to assign to the returned parameter
+     * @return a parameter instance, or null if this factory is unable to create an
+     * appropriate parameter
+     * @throws URISyntaxException where an invalid URI is encountered
+     */
+    Parameter createParameter(String name, String value) throws URISyntaxException;
+}