Struct Journal 

pub struct Journal {
    pub version: u32,
    pub entries: Vec<JournalEntry>,
}

Fields

version: u32

entries: Vec<JournalEntry>

Implementations

impl Journal

pub fn empty() -> Self

pub fn add_entry(&mut self, name: &str, hash: &str)

pub fn next_migration_number(&self) -> u32

pub fn latest_snapshot_name_owned(&self) -> Option<String>

pub fn read_from_path(path: &str) -> Result<Self, DbCoreError>

Reads a journal from a JSON file, returning an empty journal if the file does not exist.

Errors

Returns DbCoreError::JournalRead if the file exists but cannot be read or parsed.

pub fn write_to_path(&self, path: &str) -> Result<(), DbCoreError>

Writes the journal to a JSON file.

Errors

Returns DbCoreError::JournalWrite if serialization or file writing fails.

Trait Implementations

impl Clone for Journal

fn clone(&self) -> Journal

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Journal

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Journal

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Journal

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.