Enum DatabaseError 

pub enum DatabaseError {
    MutexLock,
    Pool(String),
    ConnectionOpen(String),
    Migration(String),
    DirectoryCreation(String),
    Query(String),
    JsonSerialize(String),
    JsonDeserialize(String),
    IntegerConversion(String),
    SubjectNotFound(String),
    GovernanceNotFound(String),
    EventNotFound {
        subject_id: String,
        sn: u64,
    },
    NoEvents(String),
    DateTimeParse(String),
    InvalidCursor(String),
    BlockingTask(String),
}

Errors that can occur during database operations.

Variants

MutexLock

Failed to acquire mutex lock on database connection.

Pool(String)

Database pool or connection coordination failed.

ConnectionOpen(String)

Failed to open database connection.

Migration(String)

Database migration failed.

DirectoryCreation(String)

Failed to create database directory.

Query(String)

SQL query execution failed.

JsonSerialize(String)

Failed to serialize data to JSON.

JsonDeserialize(String)

Failed to deserialize data from JSON.

IntegerConversion(String)

Integer conversion failed (e.g., u64 to i64).

SubjectNotFound(String)

Subject not found in database.

GovernanceNotFound(String)

Governance not found in register projection.

EventNotFound

Event not found in database.

Fields

subject_id: String

sn: u64

NoEvents(String)

No events found for subject.

DateTimeParse(String)

Failed to parse date/time string.

InvalidCursor(String)

Invalid pagination cursor.

BlockingTask(String)

Failed to execute SQLite work in a blocking task.

Trait Implementations

impl Clone for DatabaseError

fn clone(&self) -> DatabaseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DatabaseError

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

Formats the value using the given formatter.

impl Display for DatabaseError

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

Formats the value using the given formatter.

impl Error for DatabaseError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.