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 and 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, protocolVersion, recached, serializer, UNKNOWN_LENGTH

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class org.bitcoinj.core.Message

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

Methods inherited from class java.lang.Object

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

Field Detail

version

protected long version

locator

protected BlockLocator locator

stopHash

protected Sha256Hash stopHash

Constructor Detail

GetBlocksMessage

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

GetBlocksMessage

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

Throws:

ProtocolException

Method Detail

parse

protected void parse()
              throws ProtocolException

Specified by:

parse in class Message

Throws:

ProtocolException

getLocator

public BlockLocator getLocator()

getStopHash

public Sha256Hash getStopHash()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

bitcoinSerializeToStream

protected void bitcoinSerializeToStream(java.io.OutputStream stream)
                                 throws java.io.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:

java.io.IOException

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object