code: public void setVersionHistorySettings(
          boolean historyEnabled,
          int historyVersions,
          int historyVersionsAfterDeletion) {
  
          m_historyEnabled = historyEnabled;
          m_historyVersions = historyVersions;
          if (historyVersionsAfterDeletion < 0) {
              m_historyVersionsAfterDeletion = historyVersions;
          } else {
              m_historyVersionsAfterDeletion = historyVersionsAfterDeletion;
          }
      }
docs: VFS version history settings are set here.<p>
  
  @param historyEnabled if true the history is enabled
  @param historyVersions the maximum number of versions that are kept per VFS resource
  @param historyVersionsAfterDeletion the maximum number of versions that are kept for deleted resources