Trait CommandJournal 

pub trait CommandJournal: CommandJournalReader + CommandJournalWriter { }

The command journal (spec §22.1): both halves.

There is nothing to implement here: write CommandJournalReader and CommandJournalWriter and the blanket implementation below supplies this trait.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors

impl<T: CommandJournalReader + CommandJournalWriter + ?Sized> CommandJournal for T