kagome::storage::trie::EphemeralTrieBatch Class Reference

#include <trie_batches.hpp>

Inheritance diagram for kagome::storage::trie::EphemeralTrieBatch:

Collaboration diagram for kagome::storage::trie::EphemeralTrieBatch:

Public Member Functions
virtual outcome::result< RootHash >	hash ()=0
Public Member Functions inherited from kagome::storage::trie::TrieBatch
	~TrieBatch () override=default
std::unique_ptr< Cursor >	cursor () final
	Returns new key-value iterator. More...
virtual std::unique_ptr< PolkadotTrieCursor >	trieCursor ()=0
virtual outcome::result< std::tuple< bool, uint32_t > >	clearPrefix (const BufferView &prefix, std::optional< uint64_t > limit=std::nullopt)=0
Public Member Functions inherited from kagome::storage::face::ReadableMap< BufferView, Buffer >
virtual	~ReadableMap ()=default
virtual outcome::result< ConstValueView >	get (const Key &key) const =0
	Get value by key. More...
virtual outcome::result< std::optional< ConstValueView > >	tryGet (const Key &key) const =0
	Get value by key. More...
Public Member Functions inherited from kagome::storage::face::ReadableBase< BufferView >
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...
Public Member Functions inherited from kagome::storage::face::Writeable< BufferView, Buffer >
virtual	~Writeable ()=default
virtual outcome::result< void >	put (const BufferView &key, const Buffer &value)=0
	Store value by key. More...
virtual outcome::result< void >	put (const BufferView &key, Buffer &&value)=0
virtual outcome::result< void >	remove (const BufferView &key)=0
	Remove value by key. More...
Public Member Functions inherited from kagome::storage::face::Iterable< Buffer, common::BufferConstRef, BufferView >
virtual	~Iterable ()=default

Additional Inherited Members
Public Types inherited from kagome::storage::trie::TrieBatch
using	Cursor = face::Iterable< Buffer, common::BufferConstRef, BufferView >::Cursor
Public Types inherited from kagome::storage::face::ReadableMap< BufferView, Buffer >
using	Key = BufferView
using	Value = Buffer
using	ValueView = std::reference_wrapper< Buffer >
using	ConstValueView = std::reference_wrapper< const Buffer >
Public Types inherited from kagome::storage::face::ReadableBase< BufferView >
using	Key = BufferView
Public Types inherited from kagome::storage::face::Iterable< Buffer, common::BufferConstRef, BufferView >
using	Cursor = MapCursor< Buffer, common::BufferConstRef, BufferView >

Detailed Description

A temporary in-memory trie built on top of a persistent one All changes to it are simply discarded when the batch is destroyed

Definition at line 64 of file trie_batches.hpp.

Member Function Documentation

virtual outcome::result<RootHash> kagome::storage::trie::EphemeralTrieBatch::hash ( )

pure virtual

Calculates the hash of the state represented by a batch

Implemented in kagome::storage::trie::EphemeralTrieBatchImpl.

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The documentation for this class was generated from the following file:

• core/storage/trie/trie_batches.hpp