Inheritance diagram for kagome::storage::trie::PolkadotTrieCursor:

Collaboration diagram for kagome::storage::trie::PolkadotTrieCursor:

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...

Detailed Description

Definition at line 16 of file polkadot_trie_cursor.hpp.

Constructor & Destructor Documentation

virtual kagome::storage::trie::PolkadotTrieCursor::~PolkadotTrieCursor ( )

overridevirtualdefault

virtual outcome::result<void> kagome::storage::trie::PolkadotTrieCursor::seekLowerBound ( const common::BufferView & key )

pure virtual

Seek the first element with key not less than

virtual outcome::result<void> kagome::storage::trie::PolkadotTrieCursor::seekUpperBound ( const common::BufferView & key )

pure virtual

Seek the first element with key greater than

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