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Kagome
Polkadot Runtime Engine in C++17
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Kagome
Polkadot Runtime Engine in C++17
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#include <polkadot_trie_cursor.hpp>
Public Member Functions | |
| virtual | ~PolkadotTrieCursor () override=default |
| virtual outcome::result< void > | seekLowerBound (const common::BufferView &key)=0 |
| virtual outcome::result< void > | seekUpperBound (const common::BufferView &key)=0 |
 Public Member Functions inherited from kagome::storage::face::MapCursor< common::Buffer, common::BufferConstRef, common::BufferView > | |
| virtual | ~MapCursor ()=default |
| virtual outcome::result< bool > | seekFirst ()=0 |
| Same as std::begin(...);. More... | |
| virtual outcome::result< bool > | seek (const common::BufferView &key)=0 |
| Find given key and seek iterator to this key. More... | |
| virtual outcome::result< bool > | seekLast ()=0 |
| Same as std::rbegin(...);, e.g. points to the last valid element. More... | |
| virtual bool | isValid () const =0 |
| Is the cursor in a valid state? More... | |
| virtual outcome::result< void > | next ()=0 |
| Make step forward. More... | |
| virtual std::optional< common::Buffer > | key () const =0 |
| Getter for the key of the element currently pointed at. More... | |
| virtual std::optional< common::BufferConstRef > | value () const =0 |
| Getter for value of the element currently pointed at. More... | |
Definition at line 16 of file polkadot_trie_cursor.hpp.
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overridevirtualdefault |
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pure virtual |
Seek the first element with key not less than
Implemented in kagome::storage::trie::PolkadotTrieCursorImpl.
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pure virtual |
Seek the first element with key greater than
Implemented in kagome::storage::trie::PolkadotTrieCursorImpl.
1.8.11 
