=== modified file 'jsword/src/main/java/org/crosswire/jsword/book/sword/AbstractBackend.java'
--- old/jsword/src/main/java/org/crosswire/jsword/book/sword/AbstractBackend.java	2009-10-30 01:15:14 +0000
+++ new/jsword/src/main/java/org/crosswire/jsword/book/sword/AbstractBackend.java	2009-11-04 17:55:32 +0000
@@ -147,6 +147,15 @@
     }
 
     /**
+     * Sets alias for a comment on a verse range
+     * I.e. setRawText() was for verse range Gen.1.1-3 then setAliasKey should be called for Gen.1.1.2 and Gen.1.1.3
+     * @param alias Alias Key
+     * @param source Source Key
+     * @throws IOException Exception when anything goes wrong on writing thr alias
+     */
+    public void setAliasKey(Key alias, Key source) throws IOException {}
+
+    /**
      * Create the directory to hold the Book if it does not exist.
      * 
      * @throws IOException

=== modified file 'jsword/src/main/java/org/crosswire/jsword/book/sword/RawFileBackend.java'
--- old/jsword/src/main/java/org/crosswire/jsword/book/sword/RawFileBackend.java	2009-10-30 01:15:14 +0000
+++ new/jsword/src/main/java/org/crosswire/jsword/book/sword/RawFileBackend.java	2009-11-04 18:06:35 +0000
@@ -126,10 +126,22 @@
         encipher(textData);
         writeTextDataFile(dataFile, textData);
 
-        if (oIndex >= this.incfileValue) {
-            this.incfileValue = oIndex + 1;
-            writeIncfile(this.incfileValue);
-        }
+        checkAndIncrementIncfile(oIndex);
+    }
+
+    public void setAliasKey(Key alias, Key source) throws IOException {
+        Verse aliasVerse = KeyUtil.getVerse(alias);
+        Verse sourceVerse = KeyUtil.getVerse(source);
+        int testament = SwordConstants.getTestament(aliasVerse);
+        long aliasIndex = SwordConstants.getIndex(aliasVerse);
+        //long sourceIndex = SwordConstants.getIndex(sourceVerse);
+        int aliasOIndex = aliasVerse.getOrdinal() - 1;
+        int sourceOIndex = sourceVerse.getOrdinal() - 1;
+
+        updateIndexFile(testament, aliasIndex);
+        updateDataFile(testament, sourceOIndex);
+
+        checkAndIncrementIncfile(aliasOIndex);
     }
 
     private void initIncFile() {
@@ -209,6 +221,13 @@
         }
     }
 
+    private void checkAndIncrementIncfile(int index) throws IOException {
+        if (index >= this.incfileValue) {
+            this.incfileValue = index + 1;
+            writeIncfile(this.incfileValue);
+        }
+    }
+
     /*
      * (non-Javadoc)
      * 

=== modified file 'jsword/src/main/java/org/crosswire/jsword/book/sword/SwordBook.java'
--- old/jsword/src/main/java/org/crosswire/jsword/book/sword/SwordBook.java	2009-11-03 20:29:55 +0000
+++ new/jsword/src/main/java/org/crosswire/jsword/book/sword/SwordBook.java	2009-11-04 17:33:13 +0000
@@ -193,7 +193,11 @@
      * .Key, org.crosswire.jsword.passage.Key)
      */
     public void setAliasKey(Key alias, Key source) throws BookException {
-        throw new BookException(Msg.DRIVER_READONLY);
+        try {
+            backend.setAliasKey(alias, source);
+        } catch(IOException e) {
+            throw new BookException(Msg.UNABLE_TO_SAVE_VERSE, new Object[] {alias.getOsisID()});
+        }
     }
 
     /*

=== modified file 'jsword/src/test/java/org/crosswire/jsword/book/sword/RawFileBackendTest.java'
--- old/jsword/src/test/java/org/crosswire/jsword/book/sword/RawFileBackendTest.java	2009-10-30 01:15:14 +0000
+++ new/jsword/src/test/java/org/crosswire/jsword/book/sword/RawFileBackendTest.java	2009-11-04 18:00:38 +0000
@@ -28,8 +28,7 @@
 import junit.framework.TestCase;
 
 import org.crosswire.jsword.book.BookException;
-import org.crosswire.jsword.passage.NoSuchVerseException;
-import org.crosswire.jsword.passage.Verse;
+import org.crosswire.jsword.passage.*;
 
 /**
  * A Raw File format that allows for each verse to have it's own storage.
@@ -97,4 +96,18 @@
         assertEquals(backend.getRawText(ntVerse3), "Hello NT3"); //$NON-NLS-1$
         assertEquals(backend.getRawText(ntVerse4), "Hello NT4"); //$NON-NLS-1$
     }
+
+    public void testSetAliasKey() throws NoSuchVerseException, IOException, BookException {
+        Verse source = VerseFactory.fromString("Gen 1:1");
+        Verse alias1 = VerseFactory.fromString("Gen 1:2");
+        Verse alias2 = VerseFactory.fromString("Gen 1:3");
+
+        backend.setRawText(source, "Hello Alias test!");
+        backend.setAliasKey(alias1, source);
+        backend.setAliasKey(alias2, source);
+
+        assertEquals(backend.getRawText(source), "Hello Alias test!");
+        assertEquals(backend.getRawText(alias1), "Hello Alias test!");
+        assertEquals(backend.getRawText(alias2), "Hello Alias test!");
+    }
 }