Package nxt.peer

Class NetworkMessage.GetNextBlocksMessage

java.lang.Object

nxt.peer.NetworkMessage

nxt.peer.NetworkMessage.GetNextBlocksMessage

Enclosing class:

NetworkMessage

public static class NetworkMessage.GetNextBlocksMessage
extends NetworkMessage

The GetNextBlocks message is sent when a peer is downloading the blockchain. The Blocks message is returned in response.

• Message identifier (long)
• Start block identifier (long)
• Maximum number of blocks (integer)
• Block identifier list (long)

Nested Class Summary

Nested classes/interfaces inherited from class nxt.peer.NetworkMessage

NetworkMessage.AddPeersMessage, NetworkMessage.BlockchainStateMessage, NetworkMessage.BlockIdsMessage, NetworkMessage.BlockInventoryMessage, NetworkMessage.BlocksMessage, NetworkMessage.BundlerRateMessage, NetworkMessage.CumulativeDifficultyMessage, NetworkMessage.ErrorMessage, NetworkMessage.GetBlockMessage, NetworkMessage.GetCumulativeDifficultyMessage, NetworkMessage.GetInfoMessage, NetworkMessage.GetMilestoneBlockIdsMessage, NetworkMessage.GetNextBlockIdsMessage, NetworkMessage.GetNextBlocksMessage, NetworkMessage.GetPeersMessage, NetworkMessage.GetTransactionsMessage, NetworkMessage.GetUnconfirmedTransactionsMessage, NetworkMessage.MilestoneBlockIdsMessage, NetworkMessage.TransactionsInventoryMessage, NetworkMessage.TransactionsMessage

Field Summary

Fields inherited from class nxt.peer.NetworkMessage

MAX_ARRAY_LENGTH, MAX_LIST_SIZE, MAX_LIST_SIZE_PRE_2_3_3, messageId

Constructor Summary

Constructors

Constructor	Description
GetNextBlocksMessage(long blockId, int limit, List<Long> blockIds)	Construct a GetNextBlocks message

Method Summary

Modifier and Type	Method	Description
protected NetworkMessage	constructMessage(ByteBuffer bytes)	Construct the message from the message bytes
long	getBlockId()	Get the start block identifier
List<Long>	getBlockIds()	Get the block identifiers
int	getLimit()	Get the maximum number of blocks

Methods inherited from class java.lang.Object

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

Constructor Details

GetNextBlocksMessage

public GetNextBlocksMessage(long blockId,
 int limit,
 List<Long> blockIds)

Construct a GetNextBlocks message

Parameters:

blockId - Start block identifier

limit - Maximum number of blocks

blockIds - Block identifier list or null

Method Details

constructMessage

protected NetworkMessage constructMessage(ByteBuffer bytes)
                                   throws BufferOverflowException,
BufferUnderflowException,
nxt.peer.NetworkException

Construct the message from the message bytes

Overrides:

constructMessage in class NetworkMessage

Parameters:

bytes - Message bytes following the message name

Returns:

Message

Throws:

BufferOverflowException - Message buffer is too small

BufferUnderflowException - Message is too short

nxt.peer.NetworkException - Message is not valid

getBlockId

public long getBlockId()

Get the start block identifier

Returns:

Start block identifier

getLimit

public int getLimit()

Get the maximum number of blocks

Returns:

Maximum number of blocks

getBlockIds

public List<Long> getBlockIds()

Get the block identifiers

Returns:

Block identifiers