Struct TransactionsDecorator 

pub struct TransactionsDecorator { /* private fields */ }

The transactions decorator wraps a NamedTypesDecorator and records every write as a reversible Transition in log_store.

Implementations

impl TransactionsDecorator

pub fn new( inner: NamedTypesDecorator, log_store: NamedTypesDecorator, retention_policy: LogRetentionPolicy, commit_mode: CommitMode, trace: bool, ) -> Result<Self>

Creates a new transactions decorator wrapping inner, using log_store as the sidecar log store.

pub fn make_transitions_database_filename<P: AsRef<Path>>( database_filename: P, ) -> PathBuf

Conventional sidecar filename for the transitions log.

pub fn retention_policy(&self) -> &LogRetentionPolicy

pub fn set_retention_policy(&mut self, policy: LogRetentionPolicy)

pub fn commit_mode(&self) -> CommitMode

pub fn set_commit_mode(&mut self, mode: CommitMode)

pub fn applied_sequence(&self) -> i64

pub fn last_logged_sequence(&self) -> i64

pub fn log(&self) -> Vec<Transition>

Returns a snapshot of the transitions log in sequence order.

pub fn inner(&self) -> &NamedTypesDecorator

pub fn inner_mut(&mut self) -> &mut NamedTypesDecorator

pub fn log_store(&self) -> &NamedTypesDecorator

pub fn log_store_mut(&mut self) -> &mut NamedTypesDecorator

pub fn into_inner(self) -> (NamedTypesDecorator, NamedTypesDecorator)

pub fn save(&self) -> Result<()>

pub fn create(&mut self, source: u32, target: u32) -> Result<u32>

pub fn update(&mut self, id: u32, source: u32, target: u32) -> Result<Link>

pub fn delete(&mut self, id: u32) -> Result<Link>

pub fn create_and_update(&mut self, source: u32, target: u32) -> Result<u32>

Composite create-and-update used by callers that want a link initialised with source/target in a single pair of transitions (matches the C# CreateAndUpdate extension semantics, which always emits a Create followed by an Update transition).

pub fn exists(&self, id: u32) -> bool

pub fn get(&self, id: u32) -> Option<&Link>

pub fn all(&self) -> Vec<&Link>

pub fn query( &self, index: Option<u32>, source: Option<u32>, target: Option<u32>, ) -> Vec<&Link>

pub fn search(&self, source: u32, target: u32) -> Option<u32>

pub fn get_or_create(&mut self, source: u32, target: u32) -> Result<u32>

pub fn ensure_created(&mut self, id: u32) -> u32

pub fn begin_transaction(&mut self) -> Result<TransactionHandle>

pub fn commit(&mut self) -> Result<()>

pub fn rollback(&mut self) -> Result<()>

pub fn apply_transition(&mut self, transition: &Transition)

Public helper for higher-level decorators (e.g. version control) — applies a single transition without writing a new log entry.

pub fn revert_transition(&mut self, transition: &Transition)

Public helper for higher-level decorators (e.g. version control) — reverts a single transition without writing a new log entry.

pub fn recover(&mut self) -> Result<()>

Rebuilds the in-memory log and marker tables from the sidecar log store and re-applies committed-but-unapplied side-effects.

Trait Implementations

impl NamedTypeLinks for TransactionsDecorator

fn create(&mut self, source: u32, target: u32) -> u32

fn ensure_created(&mut self, id: u32) -> u32

fn get_link(&mut self, id: u32) -> Option<Link>

fn exists(&mut self, id: u32) -> bool

fn update(&mut self, id: u32, source: u32, target: u32) -> Result<Link>

fn delete(&mut self, id: u32) -> Result<Link>

fn all_links(&mut self) -> Vec<Link>

fn search(&mut self, source: u32, target: u32) -> Option<u32>

fn get_or_create(&mut self, source: u32, target: u32) -> u32

fn get_name(&mut self, id: u32) -> Result<Option<String>>

fn set_name(&mut self, id: u32, name: &str) -> Result<u32>

fn get_by_name(&mut self, name: &str) -> Result<Option<u32>>

fn remove_name(&mut self, id: u32) -> Result<()>

fn save(&mut self) -> Result<()>

fn try_ensure_created(&mut self, id: u32) -> Result<u32>

fn get_or_create_named(&mut self, name: &str) -> Result<u32>

fn format_reference(&mut self, id: u32) -> Result<String>

fn format_lino(&mut self, link: &Link) -> Result<String>

fn lino_lines(&mut self) -> Result<Vec<String>>

fn write_lino_output<P: AsRef<Path>>(&mut self, path: P) -> Result<()>

fn print_all_lino(&mut self) -> Result<()>

fn print_change_lino( &mut self, before: &Option<Link>, after: &Option<Link>, ) -> Result<()>

fn format_structure(&mut self, id: u32) -> Result<String>

fn format_structure_recursive( &mut self, id: u32, visited: &mut HashSet<u32>, ) -> Result<String>