public static Collection<Object/* PdxType or EnumInfo */> pdxRename(String dsName, File[] dsDirs,
      String oldRegEx, String newName) throws Exception {
    try {
      DiskStoreImpl dsi = createForOfflineModify(dsName, dsDirs);
      return dsi.pdxRename(oldRegEx, newName);
    } finally {
      cleanupOffline();
    }
  }
Returns a collection of the types renamed
geode-core/src/main/java/org/apache/geode/internal/cache/DiskStoreImpl.java