Struct CharsTapeView 

pub struct CharsTapeView<'a, Offset: OffsetType = i32> { /* private fields */ }

UTF-8 string view over RawTapeView.

Implementations

impl<'a, Offset: OffsetType> CharsTapeView<'a, Offset>

pub unsafe fn from_raw_parts(data: &'a [u8], offsets: &'a [Offset]) -> Self

Creates a zero-copy CharsTapeView from raw Arrow StringArray parts.

Safety

The caller must ensure that:

• data contains valid UTF-8 bytes for the lifetime 'a
• offsets contains valid offsets with appropriate length
• All offsets are within bounds of the data slice

pub fn get(&self, index: usize) -> Option<&str>

Returns a reference to the string at the given index, or None if out of bounds.

pub fn len(&self) -> usize

Returns the number of strings in this view.

pub fn is_empty(&self) -> bool

Returns true if the view contains no strings.

pub fn data_len(&self) -> usize

Returns the total number of bytes in this view.

pub fn subview( &self, start: usize, end: usize, ) -> Result<CharsTapeView<'a, Offset>, StringTapeError>

Creates a sub-view of this view

pub fn as_raw_parts(&self) -> RawParts<Offset>

Returns the raw parts of the view for Apache Arrow compatibility.

impl<'a, Offset: OffsetType> CharsTapeView<'a, Offset>

pub fn into_bytes_view(self) -> BytesTapeView<'a, Offset>

Trait Implementations

impl<'a, Offset: OffsetType> From<CharsTapeView<'a, Offset>> for BytesTapeView<'a, Offset>

fn from(chars_view: CharsTapeView<'a, Offset>) -> Self

Converts to this type from the input type.

impl<'a, Offset: OffsetType> Index<usize> for CharsTapeView<'a, Offset>

type Output = str

The returned type after indexing.

fn index(&self, index: usize) -> &Self::Output

Performs the indexing (container[index]) operation.

impl<'a, Offset: OffsetType> TryFrom<BytesTapeView<'a, Offset>> for CharsTapeView<'a, Offset>

type Error = StringTapeError

The type returned in the event of a conversion error.

fn try_from(bytes_view: BytesTapeView<'a, Offset>) -> Result<Self, Self::Error>

Performs the conversion.