finished importer for Rosenkeller

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

de.srsoftware.cal.api/src/main/java/de/srsoftware/cal/api/Attachment.java

@@ -4,18 +4,9 @@ package de.srsoftware.cal.api;
 import java.net.URL;
 
 /**
- * attachments may provide additional information about an appointment
+ * an attachment for appointments
+ * @param url the URL of the attached document
+ * @param mime the mime type of the attached document
  */
-public interface Attachment {
-	/**
-	 * the mime type of the attached document
-	 * @return a mime type
-	 */
-	String mime();
-
-	/**
-	 * the URL of the attached document
-	 * @return the attachment URL
-	 */
-	URL url();
+public record Attachment(URL url, String mime) {
 }

de.srsoftware.cal.api/src/main/java/de/srsoftware/cal/api/Importer.java

@@ -1,7 +1,6 @@
 /* © SRSoftware 2024 */
 package de.srsoftware.cal.api;
 
-import de.srsoftware.tools.Result;
 import java.io.IOException;
 import java.util.stream.Stream;
 
@@ -17,7 +16,9 @@ public interface Importer {
 
 	/**
 	 * get the list of appointments from the source associated with this importer
+	 *
 	 * @return a list of appointments
+	 * @throws IOException if there is an IOException
 	 */
-	Stream<Result<Appointment>> fetch() throws IOException;
+	Stream<Appointment> fetch() throws IOException;
 }

de.srsoftware.cal.api/src/main/java/de/srsoftware/cal/api/Link.java

@@ -5,17 +5,8 @@ import java.net.URL;
 
 /**
  * Links are additional content that may be added to appointments
+ * @param url the URL of the link
+ * @param desciption some information about the target of the link
  */
-public interface Link {
-	/**
-	 * some information about the target of the link
-	 * @return descriptive text
-	 */
-	String description();
-
-	/**
-	 * the URL of the link
-	 * @return the link`s URL
-	 */
-	URL url();
+public record Link(URL url, String desciption) {
 }