Trait Encoder 

pub trait Encoder: Debug {
    // Required methods
    fn encode(
        &self,
        attributes: &mut dyn Iterator<Item = (&Key, &Value)>,
    ) -> String;
    fn id(&self) -> EncoderId;
}

Available on crate feature metrics only.

Encoder is a mechanism for serializing an attribute set into a specific string representation that supports caching, to avoid repeated serialization. An example could be an exporter encoding the attribute set into a wire representation.

Required Methods

fn encode(&self, attributes: &mut dyn Iterator<Item = (&Key, &Value)>) -> String

Encode returns the serialized encoding of the attribute set using its Iterator. This result may be cached.

fn id(&self) -> EncoderId

A value that is unique for each class of attribute encoder. Attribute encoders allocate these using new_encoder_id.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl Encoder for DefaultAttributeEncoder