Enum odbc_api::buffers::Indicator

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pub enum Indicator {
    Null,
    NoTotal,
    Length(usize),
}

Expand description

Indicates existence and length of a value.

Variants

`Null`

Field does not exist

`NoTotal`

Field exists, but its length had not be reported by the driver.

`Length(usize)`

Fields exists. Value indicates number of bytes required to store the value. In case of truncated data, this is the true length of the data, before truncation occurred.

Implementations

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impl Indicator

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pub fn from_isize(indicator: isize) -> Self

Creates an indicator from an isize indicator value returned by ODBC. Users of this crate have likely no need to call this method.

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pub fn to_isize(self) -> isize

Creates an indicator value as required by the ODBC C API.

Trait Implementations

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impl Clone for Indicator

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fn clone(&self) -> Indicator

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

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impl Debug for Indicator

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

Formats the value using the given formatter. Read more

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impl PartialEq<Indicator> for Indicator

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

This method tests for self and other values to be equal, and is used by ==. Read more

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

This method tests for !=.

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impl StructuralPartialEq for Indicator

Auto Trait Implementations

impl RefUnwindSafe for Indicator

impl Send for Indicator

impl Sync for Indicator

impl Unpin for Indicator

impl UnwindSafe for Indicator

Blanket Implementations

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impl<T> Any for T where
T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

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

Uses borrowed data to replace owned data, usually by cloning. Read more

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impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

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impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

Enum odbc_api::buffers::Indicator

Variants

Null

NoTotal

Length(usize)

Implementations

impl Indicator

pub fn from_isize(indicator: isize) -> Self

pub fn to_isize(self) -> isize

Trait Implementations

impl Clone for Indicator

fn clone(&self) -> Indicator

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

impl Debug for Indicator

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

impl PartialEq<Indicator> for Indicator

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

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

impl Copy for Indicator

impl Eq for Indicator

impl StructuralEq for Indicator

impl StructuralPartialEq for Indicator

Auto Trait Implementations

impl RefUnwindSafe for Indicator

impl Send for Indicator

impl Sync for Indicator

impl Unpin for Indicator

impl UnwindSafe for Indicator

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`Null`

`NoTotal`

`Length(usize)`

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,