ch.epfl.dedis.byzcoin

Class Instance

java.lang.Object

ch.epfl.dedis.byzcoin.Instance

public class Instance
extends Object

A contract represents the data that can be interpreted by the corresponding contract.

Method Summary

Modifier and Type	Method and Description
static Instance	fromByzcoin(ByzCoinRPC bc, InstanceId id) Creates an instance given an id and a Byzcoin service.
static Instance	fromProof(Proof p) Creates an instance from a proof received from ByzCoin.
String	getContractId()
DarcId	getDarcBaseID()
byte[]	getData()
InstanceId	getId()

Methods inherited from class java.lang.Object

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

Method Detail

fromProof

public static Instance fromProof(Proof p)

Creates an instance from a proof received from ByzCoin. This function expects the proof to be valid.

Parameters:

p - the proof for the instance

Returns:

a new Instance

fromByzcoin

public static Instance fromByzcoin(ByzCoinRPC bc,
                                   InstanceId id)
                            throws CothorityCommunicationException,
                                   CothorityNotFoundException,
                                   CothorityCryptoException

Creates an instance given an id and a Byzcoin service.

Parameters:

bc - a running Byzcoin service

id - a valid instance id

Returns:

a new Instance

Throws:

CothorityCommunicationException - if something goes wrong

CothorityNotFoundException - if the requested instance cannot be found

CothorityCryptoException - if something is wrong with the proof

getId

public InstanceId getId()

Returns:

the id of this instance.

getContractId

public String getContractId()

Returns:

the contractId of this instance, which is a string.

getDarcBaseID

public DarcId getDarcBaseID()

Returns:

the darcid of this instance

getData

public byte[] getData()

Returns:

the data of this instance.