odbc_api::buffers

Struct BinColumnView

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pub struct BinColumnView<'c> { /* private fields */ }

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impl<'c> BinColumnView<'c>

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pub fn len(&self) -> usize

The number of valid elements in the text column.

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pub fn is_empty(&self) -> bool

True if, and only if there are no valid rows in the column buffer.

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pub fn get(&self, index: usize) -> Option<&'c [u8]>

Slice of text at the specified row index without terminating zero.

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pub fn iter(&self) -> BinColumnIt<'c>

Iterator over the valid elements of the text buffer

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pub fn has_truncated_values(&self) -> Option<Indicator>

Finds an indicator larger than max element in the range [0, num_rows).

After fetching data we may want to know if any value has been truncated due to the buffer not being able to hold elements of that size. This method checks the indicator buffer element wise.

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impl<'c> Clone for BinColumnView<'c>

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fn clone(&self) -> BinColumnView<'c>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'c> Debug for BinColumnView<'c>

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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<'c> Copy for BinColumnView<'c>

Auto Trait Implementations§

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impl<'c> Freeze for BinColumnView<'c>

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impl<'c> RefUnwindSafe for BinColumnView<'c>

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impl<'c> Send for BinColumnView<'c>

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impl<'c> Sync for BinColumnView<'c>

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impl<'c> Unpin for BinColumnView<'c>

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impl<'c> UnwindSafe for BinColumnView<'c>

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,

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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,

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

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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

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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,

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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)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.