[][src]Enum rusqlite::types::ValueRef

pub enum ValueRef<'a> {
    Text(&'a [u8]),
    Blob(&'a [u8]),

A non-owning dynamic type value. Typically the memory backing this value is owned by SQLite.

See Value for an owning dynamic type value.



The value is a NULL value.


The value is a signed integer.


The value is a floating point number.

Text(&'a [u8])

The value is a text string.

Blob(&'a [u8])

The value is a blob of data


impl<'_> ValueRef<'_>[src]

pub fn data_type(&self) -> Type[src]

impl<'a> ValueRef<'a>[src]

pub fn as_i64(&self) -> FromSqlResult<i64>[src]

If self is case Integer, returns the integral value. Otherwise, returns Err(Error::InvalidColumnType).

pub fn as_f64(&self) -> FromSqlResult<f64>[src]

If self is case Real, returns the floating point value. Otherwise, returns Err(Error::InvalidColumnType).

pub fn as_str(&self) -> FromSqlResult<&'a str>[src]

If self is case Text, returns the string value. Otherwise, returns Err(Error::InvalidColumnType).

pub fn as_blob(&self) -> FromSqlResult<&'a [u8]>[src]

If self is case Blob, returns the byte slice. Otherwise, returns Err(Error::InvalidColumnType).

Trait Implementations

impl<'a> Clone for ValueRef<'a>[src]

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl<'_> From<ValueRef<'_>> for Value[src]

impl<'a> From<&'a str> for ValueRef<'a>[src]

impl<'a> From<&'a [u8]> for ValueRef<'a>[src]

impl<'a> From<&'a Value> for ValueRef<'a>[src]

impl<'a> PartialEq<ValueRef<'a>> for ValueRef<'a>[src]

impl<'a> Copy for ValueRef<'a>[src]

impl<'a> Debug for ValueRef<'a>[src]

Auto Trait Implementations

impl<'a> Unpin for ValueRef<'a>

impl<'a> Sync for ValueRef<'a>

impl<'a> Send for ValueRef<'a>

impl<'a> UnwindSafe for ValueRef<'a>

impl<'a> RefUnwindSafe for ValueRef<'a>

Blanket Implementations

impl<T> From<T> for T[src]

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

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

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

type Error = Infallible

The type returned in the event of a conversion error.

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

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

The type returned in the event of a conversion error.

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

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

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