Enum DataSourceLookupError 

pub enum DataSourceLookupError {
    InvalidName,
    RegistryUnavailable,
    Stopped,
    NotFound {
        datasource: DatasourceRef,
    },
    DriverMismatch {
        datasource: DatasourceRef,
        expected: DatabaseDriver,
        actual: DatabaseDriver,
    },
}

业务作用：为 typed getter 提供稳定的 datasource 查找失败分类。

Variants

InvalidName

名称格式非法。

RegistryUnavailable

catalog 尚未安装、尚未开放或已失去受管身份。

Stopped

catalog 已完成封口，旧 Application 不再发放连接。

NotFound

名称不在当前 Application catalog。

Fields

datasource: DatasourceRef

已校验的 datasource 名称。

DriverMismatch

名称存在但属于另一数据库 driver。

Fields

datasource: DatasourceRef

已校验的 datasource 名称。

expected: DatabaseDriver

typed getter 期待的 driver。

actual: DatabaseDriver

catalog 中的实际 driver。

Trait Implementations

impl Clone for DataSourceLookupError

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DataSourceLookupError

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

Formats the value using the given formatter.

impl Display for DataSourceLookupError

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

Formats the value using the given formatter.

impl Eq for DataSourceLookupError

impl Error for DataSourceLookupError

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.

impl PartialEq for DataSourceLookupError

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for DataSourceLookupError