27 lines
615 B
Rust
27 lines
615 B
Rust
pub mod concat_iterator;
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pub mod merge_iterator;
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pub mod two_merge_iterator;
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pub trait StorageIterator {
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type KeyType<'a>: PartialEq + Eq + PartialOrd + Ord
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where
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Self: 'a;
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/// Get the current value.
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fn value(&self) -> &[u8];
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/// Get the current key.
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fn key(&self) -> Self::KeyType<'_>;
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/// Check if the current iterator is valid.
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fn is_valid(&self) -> bool;
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/// Move to the next position.
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fn next(&mut self) -> anyhow::Result<()>;
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/// Number of underlying active iterators for this iterator.
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fn num_active_iterators(&self) -> usize {
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1
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}
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}
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