DatabaseOperation.java

package com.nicewuerfel.blockown.database;

class DatabaseOperation implements Runnable {

  private final DatabaseAction action;
  private final Database database;

  DatabaseOperation(Database database, DatabaseAction action) {
    this.action = action;
    this.database = database;
  }

  @Override
  public void run() {
    if (action.getActionType() == DatabaseAction.Type.DROP) {
      database.dropDatabaseUserData(action.getUser());
    } else if (!database.setDatabaseOwner(action)) {
      database.getOutput().printException("An action has not been performed",
          new ActionNotPerformedException(action));
    }
  }
}