Package org.hyperledger.fabric.client

Interface Checkpointer

All Superinterfaces:

Checkpoint

All Known Implementing Classes:

FileCheckpointer, InMemoryCheckpointer

public interface Checkpointer
extends Checkpoint

Checkpointer allows update of a checkpoint position after events are successfully processed.

Method Summary

Modifier and Type	Method	Description
void	checkpointBlock(long blockNumber)	Checkpoint a successfully processed block.
void	checkpointChaincodeEvent(ChaincodeEvent event)	Checkpoint a chaincode event.
void	checkpointTransaction(long blockNumber, String transactionId)	Checkpoint a transaction within a block.

Methods inherited from interface org.hyperledger.fabric.client.Checkpoint

getBlockNumber, getTransactionId

Method Details

checkpointBlock

void checkpointBlock(long blockNumber)
              throws IOException

Checkpoint a successfully processed block.

Note that the block number is an unsigned 64-bit integer, with the sign bit used to hold the top bit of the number.

Parameters:

blockNumber - a ledger block number.

Throws:

IOException - if an I/O error occurs.

checkpointTransaction

void checkpointTransaction(long blockNumber,
 String transactionId)
                    throws IOException

Checkpoint a transaction within a block.

Parameters:

blockNumber - a ledger block number.

transactionId - transaction id within the block.

Throws:

IOException - if an I/O error occurs.

checkpointChaincodeEvent

void checkpointChaincodeEvent(ChaincodeEvent event)
                       throws IOException

Checkpoint a chaincode event.

Parameters:

event - a chaincode event.

Throws:

IOException - if an I/O error occurs.