Class ActionEvaluator

Class responsible for handling of IAction evaluations.

Inheritance

Object

ActionEvaluator

Implements

IActionEvaluator

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Libplanet.Action

Assembly: Libplanet.Action.dll

Syntax

public class ActionEvaluator : IActionEvaluator

Constructors

ActionEvaluator(PolicyBlockActionGetter, IStateStore, IActionLoader)

Creates a new ActionEvaluator.

Declaration

public ActionEvaluator(PolicyBlockActionGetter policyBlockActionGetter, IStateStore stateStore, IActionLoader actionTypeLoader)

Parameters

Type	Name	Description
PolicyBlockActionGetter	policyBlockActionGetter	A delegator to get policy block action to evaluate at the end for each IPreEvaluationBlock that gets evaluated.
IStateStore	stateStore	The IStateStore to use to retrieve the states for a provided HashDigest<T>.
IActionLoader	actionTypeLoader	A IActionLoader implementation using action type lookup.

Properties

ActionLoader

The IActionLoader used by this IActionEvaluator when evaluating Blocks.

Declaration

[Pure]
public IActionLoader ActionLoader { get; }

Property Value

Type	Description
IActionLoader

Methods

Evaluate(IPreEvaluationBlock, Nullable<HashDigest<SHA256>>)

The main entry point for evaluating a IPreEvaluationBlock.

Declaration

[Pure]
public IReadOnlyList<ICommittedActionEvaluation> Evaluate(IPreEvaluationBlock block, HashDigest<SHA256>? baseStateRootHash)

Parameters

Type	Name	Description
IPreEvaluationBlock	block	The block to evaluate.
Nullable<HashDigest<SHA256>>	baseStateRootHash	The base state to use when evaluating block.

Returns

Type	Description
IReadOnlyList<ICommittedActionEvaluation>	The result of evaluating every IAction related to block as an IReadOnlyList<T> of ICommittedActionEvaluations.

Remarks

This has a side-effect of writing data to internally held IStateStore.

First evaluates all IActions in Transactions of block and appends the evaluation of the held by the instance at the end.

GenerateRandomSeed(Byte[], Byte[], Byte[], Int32)

Creates a random seed.

Declaration

[Pure]
public static int GenerateRandomSeed(byte[] preEvaluationHashBytes, byte[] hashedSignature, byte[] signature, int actionOffset)

Parameters

Type	Name	Description
Byte[]	preEvaluationHashBytes	The previous evaluation hash turned into bytes.
Byte[]	hashedSignature	The hashed signature.
Byte[]	signature	The signature.
Int32	actionOffset	The offset of the action.

Returns

Type	Description
Int32	An integer of the random seed.

Implements

IActionEvaluator