Enum Error 

#[non_exhaustive]
pub enum Error {
    Client(Error),
    Io(Error),
    InvalidName(String),
    InvalidTableDefinition(String),
    NotFound(String),
    AlreadyExists(String),
    #[non_exhaustive]
    Other {
        message: String,
        source: Option<Box<dyn StdError + Send + Sync>>,
    },
}

The error type for Hyper API operations.

This enum is #[non_exhaustive]: new variants and new fields on existing struct variants may be added in minor releases. Match arms must include a wildcard _ => pattern.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Client(Error)

Error from the underlying Hyper client.

Io(Error)

I/O error.

InvalidName(String)

Invalid name error (empty or too long).

InvalidTableDefinition(String)

Invalid table definition.

NotFound(String)

Database object not found (table, schema, etc.).

AlreadyExists(String)

Database object already exists.

#[non_exhaustive]

Other

Generic error with a custom message.

Fields

Non-exhaustive enum variants could have additional fields added in future. Therefore, non-exhaustive enum variants cannot be constructed in external crates and cannot be matched against.

message: String

The error message.

source: Option<Box<dyn StdError + Send + Sync>>

The underlying cause of the error, if any.

Implementations

impl Error

pub fn new(message: impl Into<String>) -> Self

Creates a new error with the given message.

This is a convenience constructor for creating generic errors.

pub fn with_cause<E>(message: impl Into<String>, cause: E) -> Self

where E: Into<Box<dyn StdError + Send + Sync>>,

Creates a new error with a cause.

This is a convenience constructor for creating generic errors with a source.

pub fn kind(&self) -> Option<ErrorKind>

Returns the error kind, if this is a client error.

This is available when the error originates from hyperdb_api_core::client::Error. Use this for matching on error categories (e.g., ErrorKind::Connection).

pub fn message(&self) -> String

Returns the error message.

pub fn sqlstate(&self) -> Option<&str>

Extracts the PostgreSQL SQLSTATE code from the error, if available.

This is only available for database query errors from the Hyper client.

Example

use hyperdb_api::Error;

// Assuming we have a client error with SQLSTATE
// let err: Error = ...;
// if let Some("42P04") = err.sqlstate() {
//     println!("Database already exists");
// }

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(source: Error) -> Self

Converts to this type from the input type.

impl From<Infallible> for Error

fn from(_: Infallible) -> Self

Converts to this type from the input type.