I guess these are the fields in Wallet.proto you mentioned optional bytes last_seen_block_hash = 2; // The height in the chain of the last seen block. optional uint32 last_seen_block_height = 12; optional int64 last_seen_block_time_secs = 14; What might be a good way to ensure correctness ? My current plan is I to 1. disable `autosave` in `Wallet` class and 2. add a bunch of listeners to the `Wallet` class and persist the wallet only after successful event processing. But I am concerned about whether the event handlers are triggered in any specific sequence so that replaying is not an issue ? If the events are received in a different order after a restart, is there any chance that the wallet misses certain transaction ? Thanks ! On Monday, November 12, 2018 at 6:36:00 PM UTC+8, Mike Lawrence wrote: > > The wallet connects to a bitcoind node and receives tx updates as blocks > get added to the bitcoind's blockchain. > > If you use a persistent wallet then the wallet uses a block level to > resync any missed txs. > > On Sun, Nov 11, 2018 at 11:13 PM oat cookies <oatcoo...@gmail.com > <javascript:>> wrote: > >> I plan to set up a payment detection system using the SPV wallet of >> BitcoinJ on cloud (so resource is not a problem) and set up my own bitcoind >> full node. My question is, how does the wallet class keep track on the >> progress of synchronisation ? If the application crash somewhere and >> restart again, how can I make sure I won't miss any transactions ? Thanks ! >> >> -- >> You received this message because you are subscribed to the Google Groups >> "bitcoinj" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to bitcoinj+u...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > -- > Mike Lawrence >
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