pub struct DictionaryEncoding<'a> {
pub _tab: Table<'a>,
}
Fields
_tab: Table<'a>
Implementations
sourceimpl<'a> DictionaryEncoding<'a>
impl<'a> DictionaryEncoding<'a>
pub fn init_from_table(table: Table<'a>) -> Self
pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args DictionaryEncodingArgs<'args>
) -> WIPOffset<DictionaryEncoding<'bldr>>
pub const VT_ID: VOffsetT = 4u16
pub const VT_INDEXTYPE: VOffsetT = 6u16
pub const VT_ISORDERED: VOffsetT = 8u16
pub const VT_DICTIONARYKIND: VOffsetT = 10u16
sourcepub fn id(&self) -> i64
pub fn id(&self) -> i64
The known dictionary id in the application where this data is used. In the file or streaming formats, the dictionary ids are found in the DictionaryBatch messages
sourcepub fn indexType(&self) -> Option<Int<'a>>
pub fn indexType(&self) -> Option<Int<'a>>
The dictionary indices are constrained to be non-negative integers. If this field is null, the indices must be signed int32. To maximize cross-language compatibility and performance, implementations are recommended to prefer signed integer types over unsigned integer types and to avoid uint64 indices unless they are required by an application.
sourcepub fn isOrdered(&self) -> bool
pub fn isOrdered(&self) -> bool
By default, dictionaries are not ordered, or the order does not have semantic meaning. In some statistical, applications, dictionary-encoding is used to represent ordered categorical data, and we provide a way to preserve that metadata here
pub fn dictionaryKind(&self) -> DictionaryKind
Trait Implementations
sourceimpl<'a> Clone for DictionaryEncoding<'a>
impl<'a> Clone for DictionaryEncoding<'a>
sourcefn clone(&self) -> DictionaryEncoding<'a>
fn clone(&self) -> DictionaryEncoding<'a>
Returns a copy of the value. Read more
1.0.0 · sourcefn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from source
. Read more
sourceimpl Debug for DictionaryEncoding<'_>
impl Debug for DictionaryEncoding<'_>
sourceimpl<'a> Follow<'a> for DictionaryEncoding<'a>
impl<'a> Follow<'a> for DictionaryEncoding<'a>
sourceimpl<'a> PartialEq<DictionaryEncoding<'a>> for DictionaryEncoding<'a>
impl<'a> PartialEq<DictionaryEncoding<'a>> for DictionaryEncoding<'a>
sourcefn eq(&self, other: &DictionaryEncoding<'a>) -> bool
fn eq(&self, other: &DictionaryEncoding<'a>) -> bool
This method tests for self
and other
values to be equal, and is used
by ==
. Read more
sourcefn ne(&self, other: &DictionaryEncoding<'a>) -> bool
fn ne(&self, other: &DictionaryEncoding<'a>) -> bool
This method tests for !=
.
sourceimpl Verifiable for DictionaryEncoding<'_>
impl Verifiable for DictionaryEncoding<'_>
sourcefn run_verifier(
v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
fn run_verifier(
v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
Runs the verifier for this type, assuming its at position pos
in the verifier’s buffer.
Should not need to be called directly. Read more
impl<'a> Copy for DictionaryEncoding<'a>
impl<'a> StructuralPartialEq for DictionaryEncoding<'a>
Auto Trait Implementations
impl<'a> RefUnwindSafe for DictionaryEncoding<'a>
impl<'a> Send for DictionaryEncoding<'a>
impl<'a> Sync for DictionaryEncoding<'a>
impl<'a> Unpin for DictionaryEncoding<'a>
impl<'a> UnwindSafe for DictionaryEncoding<'a>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more