How to use

StorageEngineManager

in

org.lealone.storage

public static StorageEngine getStorageEngine(String name) {
  return instance.getEngine(name);
}

public StorageEngineBase(String name) {
  this.name = name;
  // 见PluggableEngineManager.PluggableEngineService中的注释
  StorageEngineManager.getInstance().registerEngine(this);
}

private static void initStorageEngineEngines() {
  registerAndInitEngines(config.storage_engines, "storage", "default.storage.engine", def -> {
    StorageEngine se = StorageEngineManager.getInstance().getEngine(def.name);
    if (se == null) {
      Class<?> clz = Utils.loadUserClass(def.name);
      se = (StorageEngine) clz.newInstance();
      StorageEngineManager.getInstance().registerEngine(se);
    }
    return se;
  });
}

StorageEngine engine = StorageEngineManager.getInstance().getEngine(data.storageEngineName);
if (engine == null) {
  try {
    engine = (StorageEngine) Utils.loadUserClass(data.storageEngineName).newInstance();
    StorageEngineManager.getInstance().registerEngine(engine);
  } catch (Exception e) {
    throw DbException.convert(e);