plugins/org.eclipse.emf.ant/examples/jmerger/merge.xml

<?xml version="1.0" encoding="UTF-8"?>
<merge:options xmlns:merge="http://www.eclipse.org/org/eclipse/emf/codegen/jmerge/Options">

    <merge:dictionaryPattern
      name="generatedMember" 
      select="Member/getComment" 
      match="\s*@\s*(gen)erated\s*\n"/>

    <merge:dictionaryPattern
      name="generatedUnmodifiableMembers" 
      select="Member/getComment" 
      match="\s*@\s*(unmod)ifiable\s*\n"/>

    <!-- if target is generated, transfer -->
    <!-- change to sourceMarkup if the source is the standard -->
    <merge:pull 
      targetMarkup="^gen$"
      sourceTransfer="(\s*//\s*begin-user-code.*?//\s*end-user-code\s*)\n"
      sourceGet="Method/getBody"
      targetPut="Method/setBody"/>

    <!-- field manipulation -->
    <merge:pull 
      targetMarkup="^gen$"
      sourceGet="Field/getType"
      targetPut="Field/setType"/>
    <merge:pull 
      targetMarkup="^gen$"
      sourceGet="Field/getInitializer"
      targetPut="Field/setInitializer"/>
      
    <merge:pull 
      targetMarkup="^gen$"
      sourceGet="Member/getFlags"
      targetPut="Member/setFlags"/>

    <!-- copy comments except between the begin-user-doc
         and end-user-doc tags -->
    <merge:pull 
      sourceMarkup="^gen$"
      targetMarkup="^gen$"
      sourceTransfer="(\s*&lt;!--\s*begin-user-doc.*?end-user-doc\s*-->\s*)\n"
      sourceGet="Member/getComment"
      targetPut="Member/setComment"/>

    <merge:pull 
      sourceMarkup="^gen$"
      targetMarkup="^modifiable$"
      sourceTransfer="(\s*&lt;!--\s*begin-user-doc.*?end-user-doc\s*-->\s*)\n"
      sourceGet="Type/getComment"
      targetPut="Type/setComment"/>

    <!-- force transfer of all unmodifiable elements -->
    <merge:pull 
      sourceMarkup="^unmod$"
      sourceGet="Member/getFlags"
      targetPut="Member/setFlags"/>
    <merge:pull 
      sourceMarkup="^unmod$"
      sourceGet="Method/getBody"
      targetPut="Method/setBody"/>

</merge:options>