Class BaseStore

Inheritance

Object

BaseStore

DefaultStore

Implements

IStore

Namespace: Libplanet.Store

Assembly: Libplanet.dll

Syntax

public abstract class BaseStore : object, IStore

Methods

AppendIndex(Guid, HashDigest<SHA256>)

Declaration

public abstract long AppendIndex(Guid chainId, HashDigest<SHA256> hash)

Parameters

Type	Name	Description
Guid	chainId
HashDigest<SHA256>	hash

Returns

Type	Description
Int64

ContainsBlock(HashDigest<SHA256>)

Determines whether the IStore contains Block<T> the specified blockHash.

Declaration

public abstract bool ContainsBlock(HashDigest<SHA256> blockHash)

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash	The HashDigest<T> of the Block<T> to check if it is in the IStore.

Returns

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

ContainsTransaction(TxId)

Determines whether the IStore contains Transaction<T> the specified txId.

Declaration

public abstract bool ContainsTransaction(TxId txId)

Parameters

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

Returns

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

CountBlocks()

Declaration

public virtual long CountBlocks()

Returns

Type	Description
Int64

CountIndex(Guid)

Declaration

public abstract long CountIndex(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId

Returns

Type	Description
Int64

CountTransactions()

Declaration

public virtual long CountTransactions()

Returns

Type	Description
Int64

DeleteBlock(HashDigest<SHA256>)

Declaration

public abstract bool DeleteBlock(HashDigest<SHA256> blockHash)

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash

Returns

Type	Description
Boolean

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.

DeleteIndex(Guid, HashDigest<SHA256>)

Declaration

public abstract bool DeleteIndex(Guid chainId, HashDigest<SHA256> hash)

Parameters

Type	Name	Description
Guid	chainId
HashDigest<SHA256>	hash

Returns

Type	Description
Boolean

DeleteTransaction(TxId)

Declaration

public abstract bool DeleteTransaction(TxId txid)

Parameters

Type	Name	Description
TxId	txid

Returns

Type	Description
Boolean

ForkBlockIndexes(Guid, Guid, HashDigest<SHA256>)

Forks block indexes from sourceChainId to destinationChainId.

Declaration

public abstract void ForkBlockIndexes(Guid sourceChainId, Guid destinationChainId, HashDigest<SHA256> branchPoint)

Parameters

Type	Name	Description
Guid	sourceChainId	The chain ID of block indexes to fork.
Guid	destinationChainId	The chain ID of destination block indexes.
HashDigest<SHA256>	branchPoint	The branch point Block<T> to fork.

Exceptions

Type	Condition
ChainIdNotFoundException	Thrown when the given sourceChainId does not exist.

See Also

IterateIndexes(Guid, Int32, Nullable<Int32>)

AppendIndex(Guid, HashDigest<SHA256>)

ForkStateReferences<T>(Guid, Guid, Block<T>)

Declaration

public abstract void ForkStateReferences<T>(Guid sourceChainId, Guid destinationChainId, Block<T> branchPoint)
    where T : IAction, new()

Parameters

Type	Name	Description
Guid	sourceChainId
Guid	destinationChainId
Block<T>	branchPoint

Type Parameters

Name	Description
T

GetBlock<T>(HashDigest<SHA256>)

Gets the corresponding stored Block<T> to the given blockHash.

Declaration

public Block<T> GetBlock<T>(HashDigest<SHA256> blockHash)
    where T : IAction, new()

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash	Hash to find.

Returns

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

Type Parameters

Name	Description
T	An IAction type. It should match to Block<T>'s type parameter.

GetBlockIndex(HashDigest<SHA256>)

Gets a stored block's Index by its Hash.

Declaration

public long? GetBlockIndex(HashDigest<SHA256> blockHash)

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash	Hash to find.

Returns

Type	Description
Nullable<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<T>(HashDigest<SHA256>).

GetBlockStates(HashDigest<SHA256>)

Declaration

public abstract IImmutableDictionary<string, IValue> GetBlockStates(HashDigest<SHA256> blockHash)

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash

Returns

Type	Description
IImmutableDictionary<String, IValue>

GetCanonicalChainId()

Gets the ID of the current canonical chain.

Declaration

public abstract Guid? GetCanonicalChainId()

Returns

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

See Also

SetCanonicalChainId(Guid)

GetTransaction<T>(TxId)

Declaration

public abstract Transaction<T> GetTransaction<T>(TxId txid)
    where T : IAction, new()

Parameters

Type	Name	Description
TxId	txid

Returns

Type	Description
Transaction<T>

Type Parameters

Name	Description
T

GetTxNonce(Guid, Address)

Gets Transaction<T> 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<T> nonce.
Address	address	The Address to get Transaction<T> nonce.

Returns

Type	Description
Int64	A Transaction<T> nonce. If there is no previous Transaction<T>, return 0.

See Also

IncreaseTxNonce(Guid, Address, 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<T> nonce.
Address	signer	The address of the account to increase tx nonce.
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)

Declaration

public abstract HashDigest<SHA256>? IndexBlockHash(Guid chainId, long index)

Parameters

Type	Name	Description
Guid	chainId
Int64	index

Returns

Type	Description
Nullable<HashDigest<SHA256>>

IterateBlockHashes()

Declaration

public abstract IEnumerable<HashDigest<SHA256>> IterateBlockHashes()

Returns

Type	Description
IEnumerable<HashDigest<SHA256>>

IterateIndexes(Guid, Int32, Nullable<Int32>)

Declaration

public abstract IEnumerable<HashDigest<SHA256>> IterateIndexes(Guid chainId, int offset, int? limit)

Parameters

Type	Name	Description
Guid	chainId
Int32	offset
Nullable<Int32>	limit

Returns

Type	Description
IEnumerable<HashDigest<SHA256>>

IterateStagedTransactionIds()

Iterates staged TxIds.

Declaration

public abstract IEnumerable<TxId> IterateStagedTransactionIds()

Returns

Type	Description
IEnumerable<TxId>	Staged TxIds.

IterateStateReferences(Guid, String, Nullable<Int64>, Nullable<Int64>, Nullable<Int32>)

Gets pairs of a state reference and a corresponding Index of the requested key in the specified chainId.

Declaration

public abstract IEnumerable<Tuple<HashDigest<SHA256>, long>> IterateStateReferences(Guid chainId, string key, long? highestIndex, long? lowestIndex, int? limit)

Parameters

Type	Name	Description
Guid	chainId	The chain ID.
String	key	The key to get state references.
Nullable<Int64>	highestIndex	The highest index of state references to get. If it is null, it will be the highest index possible.
Nullable<Int64>	lowestIndex	The lowest index of state references to get. If it is null, it will be the lowest index possible.
Nullable<Int32>	limit	The maximum number of state references to get. If it is null, it does not limit the number of state references.

Returns

Type	Description
IEnumerable<Tuple<HashDigest<SHA256>, Int64>>	Ordered pairs of a state reference and a corresponding Index. The highest index (i.e., the closest to the tip) goes first and the lowest index (i.e., the closest to the genesis) goes last.

See Also

StoreStateReference(Guid, IImmutableSet<String>, HashDigest<SHA256>, Int64)

IterateTransactionIds()

Declaration

public abstract IEnumerable<TxId> IterateTransactionIds()

Returns

Type	Description
IEnumerable<TxId>

ListAllStateReferences(Guid, Int64, Int64)

Lists all accounts, that have any states, in the given chainId and their state references.

Declaration

public abstract IImmutableDictionary<string, IImmutableList<HashDigest<SHA256>>> ListAllStateReferences(Guid chainId, long lowestIndex = null, long highestIndex = null)

Parameters

Type	Name	Description
Guid	chainId	The chain ID to look up state references.
Int64	lowestIndex	Includes state references only made after the block this argument refers to.
Int64	highestIndex	Excludes state references made after the block this argument refers to.

Returns

Type	Description
IImmutableDictionary<String, IImmutableList<HashDigest<SHA256>>>	A dictionary of account addresses to lists of their corresponding state references. Each list of state references is in ascending order, i.e., the block closest to the genesis goes first and the block closest to the tip goes last.

ListChainIds()

Lists existing chain IDs.

Declaration

public abstract IEnumerable<Guid> ListChainIds()

Returns

Type	Description
IEnumerable<Guid>	Existing chain IDs.

ListStateKeys(Guid)

Lists all keys that have ever had states.

Declaration

public abstract IEnumerable<string> ListStateKeys(Guid chainId)

Parameters

Type	Name	Description
Guid	chainId	The ID of the chain to list state keys.

Returns

Type	Description
IEnumerable<String>	All state keys in an arbitrary order. The order might be vary for each call.

ListTxNonces(Guid)

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

Returns

Type	Description
IEnumerable<KeyValuePair<Address, 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)

LookupStateReference<T>(Guid, String, Block<T>)

Declaration

public abstract Tuple<HashDigest<SHA256>, long> LookupStateReference<T>(Guid chainId, string key, Block<T> lookupUntil)
    where T : IAction, new()

Parameters

Type	Name	Description
Guid	chainId
String	key
Block<T>	lookupUntil

Returns

Type	Description
Tuple<HashDigest<SHA256>, Int64>

Type Parameters

Name	Description
T

PutBlock<T>(Block<T>)

Declaration

public abstract void PutBlock<T>(Block<T> block)
    where T : IAction, new()

Parameters

Type	Name	Description
Block<T>	block

Type Parameters

Name	Description
T

PutTransaction<T>(Transaction<T>)

Declaration

public abstract void PutTransaction<T>(Transaction<T> tx)
    where T : IAction, new()

Parameters

Type	Name	Description
Transaction<T>	tx

Type Parameters

Name	Description
T

SetBlockStates(HashDigest<SHA256>, IImmutableDictionary<String, IValue>)

Declaration

public abstract void SetBlockStates(HashDigest<SHA256> blockHash, IImmutableDictionary<string, IValue> states)

Parameters

Type	Name	Description
HashDigest<SHA256>	blockHash
IImmutableDictionary<String, IValue>	states

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()

StageTransactionIds(IImmutableSet<TxId>)

Adds TxIds to the pending list so that a next Block<T> to be mined contains the corresponding Transaction<T>s.

Declaration

public abstract void StageTransactionIds(IImmutableSet<TxId> txids)

Parameters

Type	Name	Description
IImmutableSet<TxId>	txids	TxIds to add to pending list.

StoreStateReference(Guid, IImmutableSet<String>, HashDigest<SHA256>, Int64)

Declaration

public abstract void StoreStateReference(Guid chainId, IImmutableSet<string> keys, HashDigest<SHA256> blockHash, long blockIndex)

Parameters

Type	Name	Description
Guid	chainId
IImmutableSet<String>	keys
HashDigest<SHA256>	blockHash
Int64	blockIndex

UnstageTransactionIds(ISet<TxId>)

Declaration

public abstract void UnstageTransactionIds(ISet<TxId> txids)

Parameters

Type	Name	Description
ISet<TxId>	txids

Implements

IStore