Trait exonum_merkledb::access::RawAccessMut

pub trait RawAccessMut: RawAccess { }

Allows to mutate data in indexes.

This is a marker trait that is used as a bound for mutable operations on indexes. It can be used in the same way for high-level database objects:

Example

use exonum_merkledb::{access::{Access, RawAccessMut}, ListIndex, MapIndex};

pub struct Schema<T: Access> {
    list: ListIndex<T::Base, String>,
    map: MapIndex<T::Base, u64, u64>,
}

impl<T: Access> Schema<T>
where
    T::Base: RawAccessMut,
{
    pub fn mutate(&mut self) {
        self.list.push("foo".to_owned());
        self.map.put(&1, 2);
    }
}

Implementors

impl<'_> RawAccessMut for GenericRawAccess<'_>

Will panic in runtime if mutable methods are called on an inappropriate underlying access.

impl<'a, T> RawAccessMut for T where
    T: RawAccess<Changes = ChangesMut<'a>>, 

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