--- a/artifacts/src/main/java/de/intevation/artifacts/Artifact.java	Fri May 27 08:47:31 2011 +0000
+++ b/artifacts/src/main/java/de/intevation/artifacts/Artifact.java	Tue May 31 14:53:36 2011 +0000
@@ -104,6 +104,21 @@
     throws IOException;
 
     /**
+     * Produce output for this artifact.
+     * @param type Specifies the type of the output.
+     * @param format Specifies the format of the output.
+     * @param out Stream to write the result data to.
+     * @param context The global context of the runtime system.
+     * @throws IOException Thrown if an I/O occurs.
+     */
+    void out(
+        String       type,
+        Document     format,
+        OutputStream out,
+        CallContext  context)
+    throws IOException;
+
+    /**
      * When created by a factory this method is called to
      * initialize the artifact.
      * @param identifier The identifier from artifact database