Struct Struct

pub struct Struct {
    pub fields: Vec<Option<Value>>,
    pub lookup: BTreeMap<String, usize>,
}

The partition struct stores the tuple of partition values for each file. Its type is derived from the partition fields of the partition spec used to write the manifest file. In v2, the partition struct’s field ids must match the ids from the partition spec.

Fields

fields: Vec<Option<Value>>

Vector to store the field values

lookup: BTreeMap<String, usize>

A lookup that matches the field name to the entry in the vector

Implementations

impl Struct

pub fn get(&self, name: &str) -> Option<&Option<Value>>

Gets a reference to the value associated with the given field name

Arguments

• name - The name of the field to retrieve

Returns

• Some(&Option<Value>) if the field exists
• None if the field doesn’t exist

pub fn get_mut(&mut self, name: &str) -> Option<&mut Option<Value>>

Gets a mutable reference to the value associated with the given field name

Arguments

• name - The name of the field to retrieve

Returns

• Some(&mut Option<Value>) if the field exists
• None if the field doesn’t exist

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

Returns an iterator over all field values in this struct

Returns

• An iterator yielding references to each optional Value in order

pub fn keys(&self) -> Keys<'_, String, usize>

Returns an iterator over all field names in this struct

Returns

• An iterator yielding references to each field name in sorted order

Trait Implementations

impl Clone for Struct

fn clone(&self) -> Struct

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Struct

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Struct

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl FromIterator<(String, Option<Value>)> for Struct

fn from_iter<I: IntoIterator<Item = (String, Option<Value>)>>(iter: I) -> Self

Creates a value from an iterator.

impl Hash for Struct

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Struct

fn cmp(&self, other: &Struct) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Struct

fn eq(&self, other: &Self) -> 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 PartialOrd for Struct

fn partial_cmp(&self, other: &Struct) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Struct

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Struct