Class BaseStore

Common code for several IStore implementations.

Inheritance

System.Object

BaseStore

RocksDBStore

DefaultStore

Implements

IStore

IDisposable

Namespace: Libplanet.Store

Assembly: Libplanet.Store.dll

Syntax

public abstract class BaseStore : object, IStore

Methods

AppendIndex(Guid, BlockHash)

Appends a block to a chain.

Declaration

public abstract long AppendIndex(Guid chainId, BlockHash hash)

Parameters

Type	Name	Description
Guid	chainId	The ID of a chain to append a block to.
BlockHash	hash	The hash of a block to append. Assumes the block is already put into the store.

Returns

Type	Description
System.Int64	The index of the appended block.

ContainsBlock(BlockHash)

Determines whether the IStore contains Block the specified blockHash.

Declaration

public abstract bool ContainsBlock(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	The HashDigest<T> of the Block to check if it is in the IStore.

Returns

Type	Description
System.Boolean	true if the IStore contains Block with the specified blockHash; otherwise, false.

ContainsCommittedEvidence(EvidenceId)

Determines whether the IStore contains EvidenceBase the specified evidenceId as committed.

Declaration

public abstract bool ContainsCommittedEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of the EvidenceBase to check if it is in the IStore and committed.

Returns

Type	Description
System.Boolean	true if the IStore contains EvidenceBase with the specified evidenceId as committed; otherwise, false.

ContainsPendingEvidence(EvidenceId)

Determines whether the IStore contains EvidenceBase the specified evidenceId as pending.

Declaration

public abstract bool ContainsPendingEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of the EvidenceBase to check if it is in the IStore and pending.

Returns

Type	Description
System.Boolean	true if the IStore contains EvidenceBase with the specified evidenceId as pending; otherwise, false.

ContainsTransaction(TxId)

Determines whether the IStore contains Transaction the specified txId.

Declaration

public abstract bool ContainsTransaction(TxId txId)

Parameters

Type	Name	Description
TxId	txId	The TxId of the Transaction to check if it is in the IStore.

Returns

Type	Description
System.Boolean	true if the IStore contains Transaction with the specified txId; otherwise, false.

CountBlocks()

Common code for several IStore implementations.

Declaration

public virtual long CountBlocks()

Returns

Type	Description
System.Int64

CountIndex(Guid)

Common code for several IStore implementations.

Declaration

public abstract long CountIndex(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId

Returns

Type	Description
System.Int64

DeleteBlock(BlockHash)

Removes a block from the store.

Declaration

public abstract bool DeleteBlock(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	The hash of a block to remove.

Returns

Type	Description
System.Boolean	false if such block does not exist. Otherwise true.

DeleteBlockCommit(BlockHash)

Deletes a BlockCommit of given height from store.

Declaration

public abstract void DeleteBlockCommit(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	The BlockHash of a BlockCommit to delete.

DeleteChainId(Guid)

Deletes an index, tx nonces, and state references in the given chainId. It also deletes chain itself. If there is no such chainId it does nothing.

Declaration

public abstract void DeleteChainId(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId	The ID of chain to delete.

Remarks

This does not delete blocks or transactions that belong to the index of the chainId, but only the index, tx nonces, and state references.

DeleteCommittedEvidence(EvidenceId)

Deletes a committed EvidenceBase of given evidenceId from the store.

Declaration

public abstract void DeleteCommittedEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of a committed EvidenceBase to delete.

DeleteNextStateRootHash(BlockHash)

Common code for several IStore implementations.

Declaration

public abstract void DeleteNextStateRootHash(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash

DeletePendingEvidence(EvidenceId)

Deletes a pending EvidenceBase of given evidenceId from the store.

Declaration

public abstract void DeletePendingEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of a pending EvidenceBase to delete.

DeleteTxIdBlockHashIndex(TxId, BlockHash)

Deletes the index for the txId and blockHash.

Declaration

public abstract void DeleteTxIdBlockHashIndex(TxId txId, BlockHash blockHash)

Parameters

Type	Name	Description
TxId	txId	The TxId of the Transaction.
BlockHash	blockHash	The BlockHash of the Block.

DeserializeTxExecution(BlockHash, TxId, IValue, ILogger)

Common code for several IStore implementations.

Declaration

protected static TxExecution DeserializeTxExecution(BlockHash blockHash, TxId txid, IValue decoded, ILogger logger)

Parameters

Type	Name	Description
BlockHash	blockHash
TxId	txid
IValue	decoded
ILogger	logger

Returns

Type	Description
TxExecution

Dispose()

Common code for several IStore implementations.

Declaration

public abstract void Dispose()

ForkBlockIndexes(Guid, Guid, BlockHash)

Forks block indexes from sourceChainId to destinationChainId.

Declaration

public abstract void ForkBlockIndexes(Guid sourceChainId, Guid destinationChainId, BlockHash branchpoint)

Parameters

Type	Name	Description
Guid	sourceChainId	The chain ID of block indexes to fork.
Guid	destinationChainId	The chain ID of destination block indexes.
BlockHash	branchpoint	The branchpoint Block to fork.

See Also

IterateIndexes(Guid, System.Int32, System.Nullable<System.Int32>)

AppendIndex(Guid, BlockHash)

ForkTxNonces(Guid, Guid)

Forks Transaction Nonces from sourceChainId to destinationChainId.

Declaration

public abstract void ForkTxNonces(Guid sourceChainId, Guid destinationChainId)

Parameters

Type	Name	Description
Guid	sourceChainId	The chain of Transaction Nonces to fork.
Guid	destinationChainId	The chain of destination Transaction Nonces.

GetBlock(BlockHash)

Gets the corresponding stored Block to the given blockHash.

Declaration

public Block GetBlock(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	Hash to find.

Returns

Type	Description
Block	A found block, or null if no block having such blockHash is stored.

GetBlockCommit(BlockHash)

Gets the BlockCommit for given blockHash from the store.

Declaration

public abstract BlockCommit GetBlockCommit(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	The BlockHash of a BlockCommit to retrieve.

Returns

Type	Description
BlockCommit	Returns BlockCommit if given blockHash is stored and available, otherwise returns null.

GetBlockCommitHashes()

Gets every BlockHashes of BlockCommits from store.

Declaration

public abstract IEnumerable<BlockHash> GetBlockCommitHashes()

Returns

Type	Description
IEnumerable<BlockHash>	Returns an of BlockHashes of all BlockCommits.

GetBlockDigest(BlockHash)

Gets the corresponding stored BlockDigest to the given blockHash.

Declaration

public abstract BlockDigest? GetBlockDigest(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	Hash to find.

Returns

Type	Description
System.Nullable<BlockDigest>	A found BlockDigest, or null if no block having such blockHash is stored.

GetBlockIndex(BlockHash)

Gets a stored block's Index by its Hash.

Declaration

public long? GetBlockIndex(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash	Hash to find.

Returns

Type	Description
System.Nullable<System.Int64>	A found block's Index, or null if no block having such blockHash is stored.

Remarks

It provides only limited information, but can be called without any type parameter unlike GetBlock(BlockHash).

GetCanonicalChainId()

Gets the ID of the current canonical chain.

Declaration

public abstract Guid? GetCanonicalChainId()

Returns

Type	Description
System.Nullable<Guid>	The ID of the current canonical chain. Maybe null.

See Also

SetCanonicalChainId(Guid)

GetChainBlockCommit(Guid)

Gets a BlockCommit associated with a with chainId as its .

Declaration

public abstract BlockCommit GetChainBlockCommit(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId	The of the to retrieve BlockCommit.

Returns

Type	Description
BlockCommit	Returns BlockCommit if given chainId is stored and available, otherwise returns null.

GetCommittedEvidence(EvidenceId)

Gets every committed EvidenceBase of given evidenceId from the store.

Declaration

public abstract EvidenceBase GetCommittedEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of a committed EvidenceBase to retrieve.

Returns

Type	Description
EvidenceBase	Returns EvidenceBase if given evidenceId is stored, committed and available, otherwise returns null.

GetFirstTxIdBlockHashIndex(TxId)

Common code for several IStore implementations.

Declaration

public BlockHash? GetFirstTxIdBlockHashIndex(TxId txId)

Parameters

Type	Name	Description
TxId	txId

Returns

Type	Description
System.Nullable<BlockHash>

GetNextStateRootHash(BlockHash)

Common code for several IStore implementations.

Declaration

public abstract HashDigest<SHA256>? GetNextStateRootHash(BlockHash blockHash)

Parameters

Type	Name	Description
BlockHash	blockHash

Returns

Type	Description
System.Nullable<HashDigest<SHA256>>

GetPendingEvidence(EvidenceId)

Gets every pending EvidenceBase of given evidenceId from the store.

Declaration

public abstract EvidenceBase GetPendingEvidence(EvidenceId evidenceId)

Parameters

Type	Name	Description
EvidenceId	evidenceId	The EvidenceId of a pending EvidenceBase to retrieve.

Returns

Type	Description
EvidenceBase	Returns EvidenceBase if given evidenceId is stored, pending and available, otherwise returns null.

GetTransaction(TxId)

Common code for several IStore implementations.

Declaration

public abstract Transaction GetTransaction(TxId txid)

Parameters

Type	Name	Description
TxId	txid

Returns

Type	Description
Transaction

GetTxExecution(BlockHash, TxId)

Retrieves the recorded transaction execution summary.

Declaration

public abstract TxExecution GetTxExecution(BlockHash blockHash, TxId txid)

Parameters

Type	Name	Description
BlockHash	blockHash	The Hash of the recorded transaction execution to retrieve.
TxId	txid	The Id of the recorded transaction execution to retrieve.

Returns

Type	Description
TxExecution	The recorded transaction execution summary. If it has been never recorded null is returned instead.

See Also

PutTxExecution(TxExecution)

GetTxNonce(Guid, Address)

Gets Transaction nonce of the address.

Declaration

public abstract long GetTxNonce(Guid chainId, Address address)

Parameters

Type	Name	Description
Guid	chainId	The ID of the chain to get Transaction nonce.
Address	address	The Address to get Transaction nonce.

Returns

Type	Description
System.Int64	A Transaction nonce. If there is no previous Transaction, return 0.

See Also

IncreaseTxNonce(Guid, Address, System.Int64)

IncreaseTxNonce(Guid, Address, Int64)

Increases (or decreases if a negative delta is given) the tx nonce counter for signer.

Declaration

public abstract void IncreaseTxNonce(Guid chainId, Address signer, long delta = null)

Parameters

Type	Name	Description
Guid	chainId	The ID of the chain to increase Transaction nonce.
Address	signer	The address of the account to increase tx nonce.
System.Int64	delta	How many to increase the counter. A negative number decreases the counter. 1 by default.

See Also

GetTxNonce(Guid, Address)

IndexBlockHash(Guid, Int64)

Determines the block hash by its index.

Declaration

public abstract BlockHash? IndexBlockHash(Guid chainId, long index)

Parameters

Type	Name	Description
Guid	chainId	The chain ID of the index that contains the block.
System.Int64	index	The index of the block to query its hash. Negative indices mean the offset from the end. For example, -1 means the topmost block.

Returns

Type	Description
System.Nullable<BlockHash>	The block hash of the index in the chain. If there is no such index, it returns null.

IterateBlockHashes()

Lists all block hashes in the store, regardless of their belonging chains.

Declaration

public abstract IEnumerable<BlockHash> IterateBlockHashes()

Returns

Type	Description
IEnumerable<BlockHash>	All block hashes in the store.

IterateIndexes(Guid, Int32, Nullable<Int32>)

Lists all block hashes in chainId.

Declaration

public abstract IEnumerable<BlockHash> IterateIndexes(Guid chainId, int offset, int? limit)

Parameters

Type	Name	Description
Guid	chainId	The chain ID of the index that contains block hashes to iterate.
System.Int32	offset	The starting point to return block hashes.
System.Nullable<System.Int32>	limit	The maximum number of block hashes to get.

Returns

Type	Description
IEnumerable<BlockHash>	Block hashes in the index of the chainId, in ascending order; the genesis block goes first, and the tip block goes last.

IteratePendingEvidenceIds()

Gets every EvidenceIds of pending EvidenceBases from the store.

Declaration

public abstract IEnumerable<EvidenceId> IteratePendingEvidenceIds()

Returns

Type	Description
IEnumerable<EvidenceId>	Returns an of EvidenceIds of all pending EvidenceBases.

IterateTxIdBlockHashIndex(TxId)

Retrieves BlockHashes indexed by the txId.

Declaration

public abstract IEnumerable<BlockHash> IterateTxIdBlockHashIndex(TxId txId)

Parameters

Type	Name	Description
TxId	txId	The TxId of the Transaction.

Returns

Type	Description
IEnumerable<BlockHash>	BlockHashes if the index exists.

ListChainIds()

Lists chain IDs containing at least a single block.

Declaration

public abstract IEnumerable<Guid> ListChainIds()

Returns

Type	Description
IEnumerable<Guid>	Chain IDs with at least a single block.

ListTxNonces(Guid)

Lists all Addresses that have ever signed Transaction, and their corresponding Transaction nonces.

Declaration

public abstract IEnumerable<KeyValuePair<Address, long>> ListTxNonces(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId	The ID of the chain to list Addresses and their Transaction nonces.

Returns

Type	Description
IEnumerable<KeyValuePair<Address, System.Int64>>	Pairs of an Address and its tx nonce. All nonces are greater than 0. (If there are underlying entries having zero nonces these must be hidden.)

See Also

GetTxNonce(Guid, Address)

PruneOutdatedChains(Boolean)

Delete all non-canonical chains.

Declaration

public abstract void PruneOutdatedChains(bool noopWithoutCanon = false)

Parameters

Type	Name	Description
System.Boolean	noopWithoutCanon	Flag to determine whether the function throws exception when the canonical chain is not assigned. false by default. If it set to true, does not throw exception when there is no canonical chain. Otherwise, throws when there is no canonical chain.

PutBlock(Block)

Puts the given block in to the store. If the same block already exists in the store it does nothing.

Declaration

public abstract void PutBlock(Block block)

Parameters

Type	Name	Description
Block	block	A Block to put into the store.

PutBlockCommit(BlockCommit)

Puts a BlockCommit to the store.

Declaration

public abstract void PutBlockCommit(BlockCommit blockCommit)

Parameters

Type	Name	Description
BlockCommit	blockCommit	A BlockCommit to store.

PutChainBlockCommit(Guid, BlockCommit)

Puts a BlockCommit associated with a with chainId as its . The given BlockCommit should have the same BlockHash as the .

Declaration

public abstract void PutChainBlockCommit(Guid chainId, BlockCommit blockCommit)

Parameters

Type	Name	Description
Guid	chainId	The of the to store BlockCommit.
BlockCommit	blockCommit	The BlockCommit to store.

PutCommittedEvidence(EvidenceBase)

Puts a EvidenceBase to the store as committed evidence.

Declaration

public abstract void PutCommittedEvidence(EvidenceBase evidence)

Parameters

Type	Name	Description
EvidenceBase	evidence	A committed EvidenceBase to store.

PutNextStateRootHash(BlockHash, HashDigest<SHA256>)

Common code for several IStore implementations.

Declaration

public abstract void PutNextStateRootHash(BlockHash blockHash, HashDigest<SHA256> nextStateRootHash)

Parameters

Type	Name	Description
BlockHash	blockHash
HashDigest<SHA256>	nextStateRootHash

PutPendingEvidence(EvidenceBase)

Puts a EvidenceBase to the store as pending evidence.

Declaration

public abstract void PutPendingEvidence(EvidenceBase evidence)

Parameters

Type	Name	Description
EvidenceBase	evidence	A pending EvidenceBase to store.

PutTransaction(Transaction)

Common code for several IStore implementations.

Declaration

public abstract void PutTransaction(Transaction tx)

Parameters

Type	Name	Description
Transaction	tx

PutTxExecution(TxExecution)

Records the given txExecution.

Declaration

public abstract void PutTxExecution(TxExecution txExecution)

Parameters

Type	Name	Description
TxExecution	txExecution	The transaction execution summary to record. Must not be null.

Remarks

If there is already the record for the same BlockHash and TxId, the record is silently overwritten.

See Also

GetTxExecution(BlockHash, TxId)

PutTxIdBlockHashIndex(TxId, BlockHash)

Records a index for given pair txId and blockHash. If there exist a record for txId already, it overwrites the record silently.

Declaration

public abstract void PutTxIdBlockHashIndex(TxId txId, BlockHash blockHash)

Parameters

Type	Name	Description
TxId	txId	The TxId of the Transaction.
BlockHash	blockHash	The BlockHash of the Block.

SerializeTxExecution(TxExecution)

Common code for several IStore implementations.

Declaration

protected static IValue SerializeTxExecution(TxExecution txExecution)

Parameters

Type	Name	Description
TxExecution	txExecution

Returns

Type	Description
IValue

SetCanonicalChainId(Guid)

Sets the canonical chain.

Declaration

public abstract void SetCanonicalChainId(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId	The ID of a new canonical chain.

See Also

GetCanonicalChainId()

Implements

IStore

IDisposable