Kagome
Polkadot Runtime Engine in C++17
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#include <readable.hpp>
Public Types | |
using | Key = K |
Public Member Functions | |
virtual | ~ReadableBase ()=default |
virtual outcome::result< bool > | contains (const Key &key) const =0 |
Checks if given key-value binding exists in the storage. More... | |
virtual bool | empty () const =0 |
Returns true if the storage is empty. More... | |
Definition at line 16 of file readable.hpp.
using kagome::storage::face::ReadableBase< K >::Key = K |
Definition at line 17 of file readable.hpp.
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virtualdefault |
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pure virtual |
Checks if given key-value binding exists in the storage.
key | K |
Implemented in kagome::storage::trie::PolkadotTrieImpl, kagome::storage::RocksDB, kagome::storage::trie::PersistentTrieBatchImpl, kagome::storage::trie::TopperTrieBatchImpl, and kagome::storage::trie::EphemeralTrieBatchImpl.
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pure virtual |
Returns true if the storage is empty.
Implemented in kagome::storage::trie::PolkadotTrieImpl, kagome::storage::RocksDB, kagome::storage::InMemoryStorage, kagome::storage::trie::PersistentTrieBatchImpl, kagome::storage::trie::TopperTrieBatchImpl, kagome::storage::trie::TrieStorageBackendImpl, and kagome::storage::trie::EphemeralTrieBatchImpl.