Enum hdbconnect::HdbReturnValue

pub enum HdbReturnValue {
    ResultSet(ResultSet),
    AffectedRows(Vec<usize>),
    OutputParameters(OutputParameters),
    Success,
    XaTransactionIds(Vec<XaTransactionId>),
}

An enum that describes a single database return value.

Variants

ResultSet(ResultSet)

A resultset of a query.

AffectedRows(Vec<usize>)

A list of numbers of affected rows.

OutputParameters(OutputParameters)

Values of output parameters of a procedure call.

Success

Indication that a db call was successful.

XaTransactionIds(Vec<XaTransactionId>)

A list of XaTransactionIds.

Implementations

impl HdbReturnValue

pub fn into_resultset(self) -> Result<ResultSet, HdbError>

Turns itself into a single resultset.

Errors

HdbError::Evaluation for other variants than HdbReturnValue::ResultSet.

pub fn into_affected_rows(self) -> Result<Vec<usize>, HdbError>

Turns itself into a Vector of numbers (each number representing a number of affected rows).

Errors

HdbError::Evaluation for other variants than HdbReturnValue::AffectedRows.

pub fn into_output_parameters(self) -> Result<OutputParameters, HdbError>

Turns itself into a Vector of numbers (each number representing a number of affected rows).

Errors

HdbError::Evaluation for other variants than HdbReturnValue::OutputParameters.

pub fn into_success(self) -> Result<(), HdbError>

Turns itself into (), if the statement had returned successfully.

Errors

HdbError::Evaluation for other variants of HdbReturnValue.

pub fn is_success(&self) -> bool

Returns true if the statement had returned successfully.

Trait Implementations

impl Debug for HdbReturnValue

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

Formats the value using the given formatter.

impl Display for HdbReturnValue

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

Formats the value using the given formatter.