ch.epfl.dedis.byzcoin

Class Block

java.lang.Object

ch.epfl.dedis.byzcoin.Block

public class Block
extends Object

OmniBlock represents the data stored in a skipblock that is relevant to ByzCoin. This data is split in two parts: - header, which contains hashes of the current state and which is hashed in the block - body, which contains the actual transactions and which is not directly hashed in the block

Constructor Summary

Constructors

Constructor and Description
Block(Proof p) Constructor for the OmniBlock held in the given Proof.
Block(SkipBlock sb) Instantiates a new OmniBlock given a skipblock.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
List<ClientTransaction>	getAcceptedClientTransactions() Returns only accepted ClientTransactions stored in the block.
Sha256id	getClientTransactionHash()
SkipblockId	getId() Getter for skipblock ID.
Sha256id	getStateChangesHash()
java.time.Instant	getTimestamp()
long	getTimestampNano()
Sha256id	getTrieRoot()
List<TxResult>	getTxResults() Accessor for the transactions and results in the block.

Methods inherited from class java.lang.Object

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

Constructor Detail

Block

public Block(SkipBlock sb)
      throws CothorityCryptoException

Instantiates a new OmniBlock given a skipblock.

Parameters:

sb - skipblock holding data for an OmniBLock.

Throws:

CothorityCryptoException - if there's a problem with the cryptography

Block

public Block(Proof p)
      throws CothorityCryptoException

Constructor for the OmniBlock held in the given Proof.

Parameters:

p - the proof to parse to find the block

Throws:

CothorityCryptoException - if there's a problem with the cryptography

Method Detail

getTrieRoot

public Sha256id getTrieRoot()
                     throws CothorityCryptoException

Returns:

the root hash of the merkle tree of the global state.

Throws:

CothorityCryptoException - if there's a problem with the cryptography

getClientTransactionHash

public Sha256id getClientTransactionHash()
                                  throws CothorityCryptoException

Returns:

the sha256 of all clientTransactions stored in this block.

Throws:

CothorityCryptoException - if there's a problem with the cryptography

getStateChangesHash

public Sha256id getStateChangesHash()
                             throws CothorityCryptoException

Returns:

the sha256 hash of all state changes created by the clientTransactions in this block.

Throws:

CothorityCryptoException - if there's a problem with the cryptography

getAcceptedClientTransactions

public List<ClientTransaction> getAcceptedClientTransactions()

Returns only accepted ClientTransactions stored in the block. If you also need rejected transactions, then use getTxResults.

Returns:

a list of accepted ClientTransactions stored in this block.

getTimestampNano

public long getTimestampNano()

Returns:

the unix-timestamp in nanoseconds of the block creation time.

getTimestamp

public java.time.Instant getTimestamp()

Returns:

A java.time.Instant representing the creation of this block.

getTxResults

public List<TxResult> getTxResults()

Accessor for the transactions and results in the block.

Returns:

a list of transactions

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getId

public SkipblockId getId()

Getter for skipblock ID.