[−][src]Struct parquet::schema::types::SchemaDescriptor
A schema descriptor. This encapsulates the top-level schemas for all the columns, as well as all descriptors for all the primitive columns.
Methods
impl SchemaDescriptor[src]
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impl SchemaDescriptorpub fn new(tp: TypePtr) -> Self[src]
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pub fn new(tp: TypePtr) -> SelfCreates new schema descriptor from Parquet schema.
pub fn column(&self, i: usize) -> ColumnDescPtr[src]
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pub fn column(&self, i: usize) -> ColumnDescPtrReturns ColumnDescriptor for a field position.
pub fn columns(&self) -> &[ColumnDescPtr][src]
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pub fn columns(&self) -> &[ColumnDescPtr]Returns slice of ColumnDescriptor.
pub fn num_columns(&self) -> usize[src]
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pub fn num_columns(&self) -> usizeReturns number of leaf-level columns.
pub fn get_column_root(&self, i: usize) -> &Type[src]
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pub fn get_column_root(&self, i: usize) -> &TypeReturns column root Type for a field position.
pub fn root_schema(&self) -> &Type[src]
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pub fn root_schema(&self) -> &TypeReturns schema as Type.
pub fn name(&self) -> &str[src]
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pub fn name(&self) -> &strReturns schema name.
Auto Trait Implementations
impl !Send for SchemaDescriptor
impl !Send for SchemaDescriptorimpl !Sync for SchemaDescriptor
impl !Sync for SchemaDescriptorBlanket Implementations
impl<T, U> Into for T where
U: From<T>, [src]
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impl<T, U> Into for T where
U: From<T>, impl<T> From for T[src]
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impl<T> From for Timpl<T, U> TryFrom for T where
T: From<U>, [src]
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impl<T, U> TryFrom for T where
T: From<U>, type Error = !
try_from)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>try_from)Performs the conversion.
impl<T> Borrow for T where
T: ?Sized, [src]
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impl<T> Borrow for T where
T: ?Sized, impl<T, U> TryInto for T where
U: TryFrom<T>, [src]
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impl<T, U> TryInto for T where
U: TryFrom<T>, type Error = <U as TryFrom<T>>::Error
try_from)The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>try_from)Performs the conversion.
impl<T> BorrowMut for T where
T: ?Sized, [src]
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impl<T> BorrowMut for T where
T: ?Sized, fn borrow_mut(&mut self) -> &mut T[src]
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fn borrow_mut(&mut self) -> &mut TMutably borrows from an owned value. Read more
impl<T> Any for T where
T: 'static + ?Sized, [src]
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impl<T> Any for T where
T: 'static + ?Sized, fn get_type_id(&self) -> TypeId[src]
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fn get_type_id(&self) -> TypeId🔬 This is a nightly-only experimental API. (get_type_id)
this method will likely be replaced by an associated static
Gets the TypeId of self. Read more
impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>, impl<E> SpecializationError for E[src]
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impl<E> SpecializationError for Efn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, [src]
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fn not_found<S, T>(trait_name: &'static str, method_name: &'static str) -> E where
T: ?Sized, 🔬 This is a nightly-only experimental API. (rustc_private)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
impl<T> Erased for T[src]
impl<T> Erased for Timpl<T> Send for T where
T: ?Sized, [src]
impl<T> Send for T where
T: ?Sized, impl<T> Sync for T where
T: ?Sized, [src]
impl<T> Sync for T where
T: ?Sized, impl<T> Erased for T
impl<T> Erased for T