Examples of org.prevayler.util.memento.MementoTransaction.execute()

org.prevayler.util.memento.MementoTransaction.execute()

Executes this command on the received system. See prevayler.demos for examples. The returned object has to be Serializable in preparation for future versions of Prevayler that will provide fault-tolerance through system replicas. @param collector The memento collector to which to add the mementos. A mementocollector instead of a Prevayler instance is passed, so the command will not easily invoke subcommands through the prevayler (which is not allowed). @param prevalentSystem The system on which to execute the command. @return The object returned by the execution of this command. Most commands simply return null.

  protected void createMementos(MementoCollector collector) {
  }


  protected Account execute(MementoCollector collector) throws Exception {
    MementoTransaction command = new Withdrawal(sourceNumber, amount);
    command.execute(collector, bank);


    command = new Deposit(destinationNumber, amount);
    command.execute(collector, bank);


    return null;

  protected Account execute(MementoCollector collector) throws Exception {
    MementoTransaction command = new Withdrawal(sourceNumber, amount);
    command.execute(collector, bank);


    command = new Deposit(destinationNumber, amount);
    command.execute(collector, bank);


    return null;
  }


}

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