Module io.hotmoka.patricia

Package io.hotmoka.patricia

Class PatriciaTries

java.lang.Object

io.hotmoka.patricia.PatriciaTries

public final class PatriciaTries
extends Object

Provider of Merkle-Patricia tries.

Method Summary

Modifier and Type	Method	Description
static <Key, Value> PatriciaTrie<Key,Value,?>	of(KeyValueStore store, byte[] root, io.hotmoka.crypto.api.Hasher<? super Key> hasherForKeys, io.hotmoka.crypto.api.HashingAlgorithm hashingForNodes, byte[] hashOfEmpty, ToBytes<? super Value> valueToBytes, FromBytes<? extends Value> bytesToValue)	Yields a Merkle-Patricia trie supported by the underlying store, using the given hashing algorithm to hash nodes, keys and the values.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

of

public static <Key,
Value> PatriciaTrie<Key,Value,?> of(KeyValueStore store,
 byte[] root,
 io.hotmoka.crypto.api.Hasher<? super Key> hasherForKeys,
 io.hotmoka.crypto.api.HashingAlgorithm hashingForNodes,
 byte[] hashOfEmpty,
 ToBytes<? super Value> valueToBytes,
 FromBytes<? extends Value> bytesToValue)
                                                throws TrieException

Yields a Merkle-Patricia trie supported by the underlying store, using the given hashing algorithm to hash nodes, keys and the values.

Type Parameters:

Key - the type of the keys of the trie

Value - the type of the values of the trie

Parameters:

store - the store used to store the nodes of the tree, as a mapping from nodes' hashes to the marshalled representation of the nodes

root - the root of the trie

hasherForKeys - the hasher for the keys

hashingForNodes - the hashing algorithm for the nodes of the trie

hashOfEmpty - the hash of the empty trie

valueToBytes - a function that marshals values into their byte representation

bytesToValue - a function that unmarshals bytes into the represented value

Returns:

the trie

Throws:

TrieException - if the creation cannot be completed correctly