Struct PrintingJournal

pub struct PrintingJournal { /* private fields */ }

The printing journal writes all the journal entries to the console as either text or json.

Implementations

impl PrintingJournal

pub fn new(mode: JournalPrintingMode) -> PrintingJournal

Trait Implementations

impl Debug for PrintingJournal

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Default for PrintingJournal

fn default() -> PrintingJournal

Returns the “default value” for a type.

impl Journal for PrintingJournal

fn split( self, ) -> (Box<dyn WritableJournal + Send + Sync>, Box<dyn ReadableJournal + Send + Sync>)

Splits the journal into a read and write side

impl ReadableJournal for PrintingJournal

fn read(&self) -> Result<Option<LogReadResult<'_>>, Error>

Returns a stream of snapshot objects that the runtime will use to restore the state of a WASM process to a previous moment in time

fn as_restarted(&self) -> Result<Box<dyn ReadableJournal + Send + Sync>, Error>

Resets the journal so that reads will start from the beginning again

impl WritableJournal for PrintingJournal

fn write<'a>(&'a self, entry: JournalEntry<'a>) -> Result<LogWriteResult, Error>

Takes in a stream of snapshot log entries and saves them so that they may be restored at a later moment

fn flush(&self) -> Result<(), Error>

Flushes the data to disk or network

fn commit(&self) -> Result<usize, Error>

Commits the transaction Returns the number of events committed

fn rollback(&self) -> Result<usize, Error>

Rolls back the transaction and aborts its changes Returns the number of events rolled back