Package com.norswap.nanoeth.data

Class MerkleRoot

java.lang.Object

com.norswap.nanoeth.data.Hash

com.norswap.nanoeth.data.MerkleRoot

All Implemented Interfaces:

RLPLayoutable

@Wrapper
public final class MerkleRoot
extends Hash

A Hash that is marked as being a Merkle root.

A Merkle root is the hash associated with the root of a Merkle tree.

The hash ("label") associated with a Merkle tree node is the hash of the data for leaf nodes, and the hash of the children's labels for non-leaf nodes.

Field Summary

Fields

Modifier and Type	Field	Description
static MerkleRoot	ZERO	A merkle root composed of only zero bytes, which happens to be the merkle root of empty trees.

Fields inherited from class com.norswap.nanoeth.data.Hash

bytes, EMPTY_SEQ_HASH

Constructor Summary

Constructors

Constructor	Description
MerkleRoot(byte[] bytes)
MerkleRoot(Hash hash)
MerkleRoot(String hexString)	Creates a merkle root from a hex string (e.g.

Method Summary

Modifier and Type	Method	Description
static MerkleRoot	parse(RLP rlp)

Methods inherited from class com.norswap.nanoeth.data.Hash

equals, hashCode, rlpLayout, toFullHexString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.norswap.nanoeth.rlp.RLPLayoutable

rlpEncode, rlpHexString

Field Details

ZERO

public static final MerkleRoot ZERO

A merkle root composed of only zero bytes, which happens to be the merkle root of empty trees.

Constructor Details

MerkleRoot

public MerkleRoot(byte[] bytes)

MerkleRoot

public MerkleRoot(Hash hash)

MerkleRoot

public MerkleRoot(String hexString)

Creates a merkle root from a hex string (e.g. 0x123).

If the post-0x part of the hex string is not 64 characters long, the hash will be padded with zeroes at the start so that it is 32 bytes long.

Method Details

parse

public static MerkleRoot parse(RLP rlp)
                        throws RLPParsingException

Throws:

RLPParsingException