Index: trunk/src/org/openstreetmap/josm/CLIModule.java
===================================================================
--- trunk/src/org/openstreetmap/josm/CLIModule.java	(revision 12793)
+++ trunk/src/org/openstreetmap/josm/CLIModule.java	(revision 12793)
@@ -0,0 +1,27 @@
+// License: GPL. For details, see LICENSE file.
+package org.openstreetmap.josm;
+
+/**
+ * A command line interface module.
+ * <p>
+ * The user can provide an action keyword as first argument. This will invoke the
+ * corresponding {@code CLIModule}, which has its own set of options and will do
+ * a specific job.
+ * @since 12793
+ */
+public interface CLIModule {
+
+    /**
+     * Get the action keyword that the user needs to provide as first command
+     * line argument to invoke this module.
+     * @return the action keyword of this module
+     */
+    String getActionKeyword();
+
+    /**
+     * Process the remaining command line arguments and run any of the requested actions.
+     * @param argArray command line arguments without the initial action keyword
+     */
+    void processArguments(String[] argArray);
+
+}