Struct AnyColumnBufferSlice 

pub struct AnyColumnBufferSlice<'a> { /* private fields */ }

Enables reading the valid contents of a column buffer, while it is bound to a block cursor as Box<dyn AnyColumnBuffer>.

Implementations

impl<'a> AnyColumnBufferSlice<'a>

pub fn of<T>(self) -> Option<T::Slice<'a>>

where T: Slice + 'static,

Fetch the associated slice if we know the underlying buffer to be of type T.

pub fn as_text(self) -> Option<TextColumnSlice<'a, u8>>

Use this if you know the underlying buffer holds narrow (e.g. UTF-8) character data and you want to read it.

Some if the the underlying buffer is of type TextColumn with u8 values. Same as Self::of::<TextColumn<u8>>.

pub fn as_wide_text(self) -> Option<TextColumnSlice<'a, u16>>

Use this if you know the underlying buffer holds wide (i.e. UTF-16) character data and you want to read it.

Some if the the underlying buffer is of type TextColumn with u16 values. Same as Self::of::<TextColumn<u16>>.

pub fn as_binary(self) -> Option<BinColumnSlice<'a>>

Use this if you know the underlying buffer holds binary data and you want to read it.

Some if the the underlying buffer is of type BinColumn. Same as Self::of::<BinColumn>.

pub fn as_slice<T>(self) -> Option<&'a [T]>

where T: Pod,

Use this if you know the underlying buffer to hold non-nullable data of type T.

pub fn as_nullable_slice<T>(self) -> Option<NullableSlice<'a, T>>

where T: Pod,

Use this if you know the underlying buffer to hold nullable data of type T.

Trait Implementations

impl<'a> Clone for AnyColumnBufferSlice<'a>

fn clone(&self) -> AnyColumnBufferSlice<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for AnyColumnBufferSlice<'a>