@@ -0,0 +1,770 @@
+package com.github.aureliano.verbum_domini.dao.helper;%0A%0Aimport com.github.aureliano.verbum_domini.orm.PersistenceManager;%0A%0Apublic final class DataHelper %7B%0A%0A%09private static DataHelper instance;%0A%09%0A%09private boolean dataHelpersInitialized;%0A%09%0A%09private DataHelper() %7B%0A%09%09this.dataHelpersInitialized = false;%0A%09%7D%0A%09%0A%09public static DataHelper instance() %7B%0A%09%09if (instance == null) %7B%0A%09%09%09instance = new DataHelper();%0A%09%09%7D%0A%09%09%0A%09%09return instance;%0A%09%7D%0A%09%0A%09public void initializeDataHelpers() %7B%0A%09%09if (this.dataHelpersInitialized) %7B%0A%09%09%09return;%0A%09%09%7D%0A%09%09%0A%09%09PersistenceManager.instance().startUp();%0A%09%09BibleDataHelper.createBibles();%0A%09%09BookDataHelper.createBooks();%0A%09%09%0A%09%09this.dataHelpersInitialized = true;%0A%09%7D%0A%09%0A%09public boolean isDataHelpersInitialized() %7B%0A%09%09return this.dataHelpersInitialized;%0A%09%7D%0A%7D

Create singleton class for managing DAO units data preparation.