Package org.bitcoinj.core

Class GetBlocksMessage

java.lang.Object

org.bitcoinj.core.Message

org.bitcoinj.core.GetBlocksMessage

Direct Known Subclasses:

GetHeadersMessage

public class GetBlocksMessage
extends Message

Represents the "getblocks" P2P network message, which requests the hashes of the parts of the block chain we're missing. Those blocks can then be downloaded with a GetDataMessage.

Instances of this class are not safe for use by multiple threads.

Field Summary

Fields

Modifier and Type	Field	Description
protected BlockLocator	locator
protected Sha256Hash	stopHash
protected long	version

Fields inherited from class org.bitcoinj.core.Message

cursor, length, MAX_SIZE, offset, params, payload, recached, serializer, UNKNOWN_LENGTH

Constructor Summary

Constructors

Constructor	Description
GetBlocksMessage(NetworkParameters params, byte[] payload)
GetBlocksMessage(NetworkParameters params, BlockLocator locator, Sha256Hash stopHash)

Method Summary

Modifier and Type	Method	Description
protected void	bitcoinSerializeToStream(OutputStream stream)	Serializes this message to the provided stream.
boolean	equals(Object o)
BlockLocator	getLocator()
Sha256Hash	getStopHash()
int	hashCode()
protected void	parse()
String	toString()

Methods inherited from class org.bitcoinj.core.Message

adjustLength, bitcoinSerialize, bitcoinSerialize, getHash, getMessageSize, getParams, hasMoreBytes, isCached, isRecached, readByte, readByteArray, readBytes, readHash, readInt64, readStr, readUint32, readUint64, readVarInt, readVarInt, setSerializer, unCache, unsafeBitcoinSerialize

Methods inherited from class java.lang.Object

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

Field Details

version

protected long version

locator

protected BlockLocator locator

stopHash

protected Sha256Hash stopHash

Constructor Details

GetBlocksMessage

public GetBlocksMessage(NetworkParameters params,
 BlockLocator locator,
 Sha256Hash stopHash)

GetBlocksMessage

public GetBlocksMessage(NetworkParameters params,
 byte[] payload)
                 throws ProtocolException

Throws:

ProtocolException

Method Details

parse

protected void parse()
              throws ProtocolException

Specified by:

parse in class Message

Throws:

ProtocolException

getLocator

public BlockLocator getLocator()

getStopHash

public Sha256Hash getStopHash()

toString

public String toString()

Overrides:

toString in class Object

bitcoinSerializeToStream

protected void bitcoinSerializeToStream(OutputStream stream)
                                 throws IOException

Description copied from class: Message

Serializes this message to the provided stream. If you just want the raw bytes use bitcoinSerialize().

Overrides:

bitcoinSerializeToStream in class Message

Throws:

IOException

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object