WalletFiles (bitcoinj 0.12.3 API)

```
public class WalletFiles
extends Object
```
A class that handles atomic and optionally delayed writing of the wallet file to disk. In future: backups too. It can be useful to delay writing of a wallet file to disk on slow devices where disk and serialization overhead can come to dominate the chain processing speed, i.e. on Android phones. By coalescing writes and doing serialization and disk IO on a background thread performance can be improved.

Nested Classes
Modifier and Type	Class and Description
`static interface`	`WalletFiles.Listener` Implementors can do pre/post treatment of the wallet file.

Constructors
Constructor and Description
`WalletFiles(Wallet wallet, File file, long delay, TimeUnit delayTimeUnit)`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`saveLater()` Queues up a save in the background.
`void`	`saveNow()` Actually write the wallet file to disk, using an atomic rename when possible.
`void`	`setListener(WalletFiles.Listener listener)` The given listener will be called on the autosave thread before and after the wallet is saved to disk.
`void`	`shutdownAndWait()` Shut down auto-saving.

public WalletFiles(Wallet wallet,
                   File file,
                   long delay,
                   TimeUnit delayTimeUnit)

Class WalletFiles