Trait DataMapper 

pub trait DataMapper: Send + 'static {
    type In: Data;
    type Out: Send + 'static;

    // Required method
    fn map(self, data: Self::In) -> Result<Self::Out>;
}

Data mapper, to map data from an In type to an Out type, this is useful for using the built-in caching mechanism of the DataLoader

Required Associated Types

type In: Data

type Out: Send + 'static

Required Methods

fn map(self, data: Self::In) -> Result<Self::Out>

Implementors

impl<F, In: Data, Out: Send + 'static> DataMapper for MapperFn<F, In, Out>

where F: FnOnce(In) -> Result<Out> + Send + 'static,

type In = In

type Out = Out