Trait Exists 

pub trait Exists {
    // Required method
    fn exists(&self, id: &oid) -> bool;
}

Check if an object is present in an object store.

Required Methods

fn exists(&self, id: &oid) -> bool

Returns true if the object exists in the database.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<T> Exists for &T

where T: Exists,

fn exists(&self, id: &oid) -> bool

impl<T> Exists for Box<T>

where T: Exists,

fn exists(&self, id: &oid) -> bool

impl<T> Exists for Rc<T>

where T: Exists,

fn exists(&self, id: &oid) -> bool

impl<T> Exists for Arc<T>

where T: Exists,

fn exists(&self, id: &oid) -> bool

Implementors

impl Exists for Never