Struct arrow::ipc::gen::Schema::Field [−][src]
pub struct Field<'a> { pub _tab: Table<'a>, }
Expand description
A field represents a named column in a record / row batch or child of a nested type.
Fields
_tab: Table<'a>
Implementations
impl<'a> Field<'a>
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impl<'a> Field<'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 FieldArgs<'args>
) -> WIPOffset<Field<'bldr>>
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_fbb: &'mut_bldr mut FlatBufferBuilder<'bldr>,
args: &'args FieldArgs<'args>
) -> WIPOffset<Field<'bldr>>
pub const VT_NAME: VOffsetT
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pub const VT_NULLABLE: VOffsetT
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pub const VT_TYPE_TYPE: VOffsetT
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pub const VT_TYPE_: VOffsetT
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pub const VT_DICTIONARY: VOffsetT
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pub const VT_CHILDREN: VOffsetT
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pub const VT_CUSTOM_METADATA: VOffsetT
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pub fn nullable(&self) -> bool
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pub fn nullable(&self) -> bool
[src]Whether or not this field can contain nulls. Should be true in general.
pub fn type_type(&self) -> Type
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pub fn type_(&self) -> Option<Table<'a>>
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pub fn type_(&self) -> Option<Table<'a>>
[src]This is the type of the decoded value if the field is dictionary encoded.
pub fn dictionary(&self) -> Option<DictionaryEncoding<'a>>
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pub fn dictionary(&self) -> Option<DictionaryEncoding<'a>>
[src]Present only if the field is dictionary encoded.
pub fn children(&self) -> Option<Vector<'a, ForwardsUOffset<Field<'a>>>>
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pub fn children(&self) -> Option<Vector<'a, ForwardsUOffset<Field<'a>>>>
[src]children apply only to nested data types like Struct, List and Union. For primitive types children will have length 0.
pub fn custom_metadata(
&self
) -> Option<Vector<'a, ForwardsUOffset<KeyValue<'a>>>>
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pub fn custom_metadata(
&self
) -> Option<Vector<'a, ForwardsUOffset<KeyValue<'a>>>>
[src]User-defined metadata
pub fn type_as_null(&self) -> Option<Null<'a>>
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pub fn type_as_int(&self) -> Option<Int<'a>>
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pub fn type_as_floating_point(&self) -> Option<FloatingPoint<'a>>
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pub fn type_as_binary(&self) -> Option<Binary<'a>>
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pub fn type_as_utf_8(&self) -> Option<Utf8<'a>>
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pub fn type_as_bool(&self) -> Option<Bool<'a>>
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pub fn type_as_decimal(&self) -> Option<Decimal<'a>>
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pub fn type_as_date(&self) -> Option<Date<'a>>
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pub fn type_as_time(&self) -> Option<Time<'a>>
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pub fn type_as_timestamp(&self) -> Option<Timestamp<'a>>
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pub fn type_as_interval(&self) -> Option<Interval<'a>>
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pub fn type_as_list(&self) -> Option<List<'a>>
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pub fn type_as_struct_(&self) -> Option<Struct_<'a>>
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pub fn type_as_union(&self) -> Option<Union<'a>>
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pub fn type_as_fixed_size_binary(&self) -> Option<FixedSizeBinary<'a>>
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pub fn type_as_fixed_size_list(&self) -> Option<FixedSizeList<'a>>
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pub fn type_as_map(&self) -> Option<Map<'a>>
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pub fn type_as_duration(&self) -> Option<Duration<'a>>
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pub fn type_as_large_binary(&self) -> Option<LargeBinary<'a>>
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pub fn type_as_large_utf_8(&self) -> Option<LargeUtf8<'a>>
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pub fn type_as_large_list(&self) -> Option<LargeList<'a>>
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Trait Implementations
impl Verifiable for Field<'_>
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impl Verifiable for Field<'_>
[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 Field<'a>
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impl<'a> StructuralPartialEq for Field<'a>
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Auto Trait Implementations
impl<'a> RefUnwindSafe for Field<'a>
impl<'a> Send for Field<'a>
impl<'a> Sync for Field<'a>
impl<'a> Unpin for Field<'a>
impl<'a> UnwindSafe for Field<'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>,