Struct arrow::ipc::gen::Schema::DictionaryEncoding [−][src]
pub struct DictionaryEncoding<'a> { pub _tab: Table<'a>, }
Fields
_tab: Table<'a>
Implementations
impl<'a> DictionaryEncoding<'a>
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impl<'a> DictionaryEncoding<'a>
[src]pub fn init_from_table(table: Table<'a>) -> Self
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pub fn create<'bldr: 'args, 'args: 'mut_bldr, 'mut_bldr>(
_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args DictionaryEncodingArgs<'args>
) -> WIPOffset<DictionaryEncoding<'bldr>>
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_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args DictionaryEncodingArgs<'args>
) -> WIPOffset<DictionaryEncoding<'bldr>>
pub const VT_ID: VOffsetT
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pub const VT_INDEXTYPE: VOffsetT
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pub const VT_ISORDERED: VOffsetT
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pub const VT_DICTIONARYKIND: VOffsetT
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pub fn id(&self) -> i64
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pub fn id(&self) -> i64
[src]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
pub fn indexType(&self) -> Option<Int<'a>>
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pub fn indexType(&self) -> Option<Int<'a>>
[src]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.
pub fn isOrdered(&self) -> bool
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pub fn isOrdered(&self) -> bool
[src]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
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Trait Implementations
impl<'a> Clone for DictionaryEncoding<'a>
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impl<'a> Clone for DictionaryEncoding<'a>
[src]fn clone(&self) -> DictionaryEncoding<'a>
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fn clone(&self) -> DictionaryEncoding<'a>
[src]Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
fn clone_from(&mut self, source: &Self)
1.0.0[src]Performs copy-assignment from source
. Read more
impl Debug for DictionaryEncoding<'_>
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impl Debug for DictionaryEncoding<'_>
[src]impl<'a> Follow<'a> for DictionaryEncoding<'a>
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impl<'a> Follow<'a> for DictionaryEncoding<'a>
[src]impl<'a> PartialEq<DictionaryEncoding<'a>> for DictionaryEncoding<'a>
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impl<'a> PartialEq<DictionaryEncoding<'a>> for DictionaryEncoding<'a>
[src]fn eq(&self, other: &DictionaryEncoding<'a>) -> bool
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fn eq(&self, other: &DictionaryEncoding<'a>) -> bool
[src]This method tests for self
and other
values to be equal, and is used
by ==
. Read more
fn ne(&self, other: &DictionaryEncoding<'a>) -> bool
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fn ne(&self, other: &DictionaryEncoding<'a>) -> bool
[src]This method tests for !=
.
impl Verifiable for DictionaryEncoding<'_>
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impl Verifiable for DictionaryEncoding<'_>
[src]fn run_verifier(
v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
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fn run_verifier(
v: &mut Verifier<'_, '_>,
pos: usize
) -> Result<(), InvalidFlatbuffer>
[src]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>
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impl<'a> StructuralPartialEq for DictionaryEncoding<'a>
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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
impl<T> BorrowMut<T> for T where
T: ?Sized,
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impl<T> BorrowMut<T> for T where
T: ?Sized,
[src]pub fn borrow_mut(&mut self) -> &mut T
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pub fn borrow_mut(&mut self) -> &mut T
[src]Mutably borrows from an owned value. Read more
impl<T> ToOwned for T where
T: Clone,
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impl<T> ToOwned for T where
T: Clone,
[src]type Owned = T
type Owned = T
The resulting type after obtaining ownership.
pub fn to_owned(&self) -> T
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pub fn to_owned(&self) -> T
[src]Creates owned data from borrowed data, usually by cloning. Read more
pub fn clone_into(&self, target: &mut T)
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pub fn clone_into(&self, target: &mut T)
[src]🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,