Struct StructType

pub struct StructType { /* private fields */ }

DataType for a specific struct

Implementations

impl StructType

pub fn new(fields: Vec<StructField>) -> StructType

Creates a new StructType with the given fields

Arguments

• fields - Vector of StructField that define the structure

The method automatically builds a lookup table mapping field IDs to their position in the fields vector for efficient field access by ID.

pub fn builder() -> StructTypeBuilder

Creates a new StructTypeBuilder to construct a StructType using the builder pattern

This is the recommended way to construct complex StructType instances when you need to add fields incrementally or conditionally.

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

Gets a reference to the StructField at the given index

Arguments

• index - The index of the field to retrieve

Returns

• Some(&StructField) if a field exists at that index
• None if no field exists at that index

pub fn get_name(&self, name: &str) -> Option<&StructField>

Gets a reference to the StructField with the given name

Arguments

• name - The name of the field to retrieve

Returns

• Some(&StructField) if a field with the given name exists
• None if no field with that name exists

pub fn len(&self) -> usize

Returns the number of fields in this struct

Returns

• The total count of StructFields contained in this struct

pub fn is_empty(&self) -> bool

Returns true if the struct contains no fields

Returns

• true if this struct has no fields
• false if this struct has at least one field

pub fn iter(&self) -> Iter<'_, StructField>

Returns an iterator over all fields in this struct

Returns

• An iterator yielding references to each StructField in order

Trait Implementations

impl Clone for StructType

fn clone(&self) -> StructType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StructType

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StructType

fn deserialize<D>( deserializer: D, ) -> Result<StructType, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Index<usize> for StructType

type Output = StructField

The returned type after indexing.

fn index(&self, index: usize) -> &<StructType as Index<usize>>::Output

Performs the indexing (container[index]) operation.

impl PartialEq for StructType

fn eq(&self, other: &StructType) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for StructType

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<&Fields> for StructType

type Error = Error

The type returned in the event of a conversion error.

fn try_from( value: &Fields, ) -> Result<StructType, <StructType as TryFrom<&Fields>>::Error>

Performs the conversion.

impl TryFrom<&Schema> for StructType

type Error = Error

The type returned in the event of a conversion error.

fn try_from( value: &Schema, ) -> Result<StructType, <StructType as TryFrom<&Schema>>::Error>

Performs the conversion.

impl TryInto<Fields> for &StructType

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Fields, <&StructType as TryInto<Fields>>::Error>

Performs the conversion.

impl TryInto<Schema> for &StructType

type Error = Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<Schema, <&StructType as TryInto<Schema>>::Error>

Performs the conversion.

impl Eq for StructType

impl StructuralPartialEq for StructType