Trait Collatable 

pub trait Collatable {
    // Required methods
    fn to_bytes(&self) -> Vec<u8> ;
    fn successor_bytes(&self) -> Option<Vec<u8>>;
    fn predecessor_bytes(&self) -> Option<Vec<u8>>;
    fn is_minimum(&self) -> bool;
    fn is_maximum(&self) -> bool;

    // Provided methods
    fn compare(&self, other: &Self) -> Ordering { ... }
    fn is_in_range(
        &self,
        lower: RangeBound<&Self>,
        upper: RangeBound<&Self>,
    ) -> bool { ... }
}

Trait for types that support collation operations

Required Methods

fn to_bytes(&self) -> Vec<u8>

Convert the value to its binary representation for collation

fn successor_bytes(&self) -> Option<Vec<u8>>

Returns the immediate successor’s binary representation if one exists

fn predecessor_bytes(&self) -> Option<Vec<u8>>

Returns the immediate predecessor’s binary representation if one exists

fn is_minimum(&self) -> bool

Returns true if this value represents a minimum bound in its domain

fn is_maximum(&self) -> bool

Returns true if this value represents a maximum bound in its domain

Provided Methods

fn compare(&self, other: &Self) -> Ordering

Compare two values in the collation order

fn is_in_range( &self, lower: RangeBound<&Self>, upper: RangeBound<&Self>, ) -> bool

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl Collatable for &str

fn to_bytes(&self) -> Vec<u8>

fn successor_bytes(&self) -> Option<Vec<u8>>

fn predecessor_bytes(&self) -> Option<Vec<u8>>

fn is_minimum(&self) -> bool

fn is_maximum(&self) -> bool

impl Collatable for Literal

fn to_bytes(&self) -> Vec<u8>

fn successor_bytes(&self) -> Option<Vec<u8>>

fn predecessor_bytes(&self) -> Option<Vec<u8>>

fn is_minimum(&self) -> bool

fn is_maximum(&self) -> bool

impl Collatable for f64

fn to_bytes(&self) -> Vec<u8>

fn successor_bytes(&self) -> Option<Vec<u8>>

fn predecessor_bytes(&self) -> Option<Vec<u8>>

fn is_minimum(&self) -> bool

fn is_maximum(&self) -> bool

impl Collatable for i64

fn to_bytes(&self) -> Vec<u8>

fn successor_bytes(&self) -> Option<Vec<u8>>

fn predecessor_bytes(&self) -> Option<Vec<u8>>

fn is_minimum(&self) -> bool

fn is_maximum(&self) -> bool

Implementors

impl Collatable for Value

impl Collatable for EntityId