Trait frame_support::storage::PrefixIteratorOnRemoval

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pub trait PrefixIteratorOnRemoval {
    // Required method
    fn on_removal(key: &[u8], value: &[u8]);
}
Expand description

Trait for specialising on removal logic of PrefixIterator.

Required Methods§

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fn on_removal(key: &[u8], value: &[u8])

This function is called whenever a key/value is removed.

Object Safety§

This trait is not object safe.

Implementations on Foreign Types§

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impl PrefixIteratorOnRemoval for ()

No-op implementation.

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fn on_removal(_key: &[u8], _value: &[u8])

Implementors§