Class ExpressionPlanEqualityComparer

Namespace

NextORM.Core

Assembly

nextorm.core.dll

Compares expressions structurally so that logically identical queries share a cached plan. Owns the thread-static hashing visitor used by GetHashCode.

public class ExpressionPlanEqualityComparer : IEqualityComparer<Expression?>

Inheritance

object

ExpressionPlanEqualityComparer

Implements

IEqualityComparer<Expression>

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Extension Methods

IEqualityComparerExtensions.Equals<T>(IEqualityComparer<T>, IReadOnlyList<T>?, IReadOnlyList<T>?)

IEqualityComparerExtensions.Equals<T>(IEqualityComparer<T>, T[]?, T[]?)

EntityBuilderExtensions.AsEntityBuilder<T>(object?)

Constructors

ExpressionPlanEqualityComparer(IQueryRegistry)

Creates a comparer for the given registry without plan-cache logging.

public ExpressionPlanEqualityComparer(IQueryRegistry queryProvider)

Parameters

queryProvider IQueryRegistry

The registry that resolves referenced queries and nested comparers.

ExpressionPlanEqualityComparer(IQueryRegistry, ILogger?)

Creates a comparer for the given registry, logging plan-cache misses through logger.

public ExpressionPlanEqualityComparer(IQueryRegistry queryProvider, ILogger? logger)

Parameters

queryProvider IQueryRegistry

The registry that resolves referenced queries and nested comparers.

logger ILogger

The optional logger for plan-cache diagnostics.

Methods

Equals(Expression?, Expression?)

Determines whether the specified objects are equal.

public bool Equals(Expression? left, Expression? right)

Parameters

left Expression

right Expression

Returns

bool

true if the specified objects are equal; otherwise, false.

GetHashCode(Expression)

Returns a structural hash of obj, resolving nested commands and outer references through the registry.

public int GetHashCode(Expression obj)

Parameters

obj Expression

The expression to hash.

Returns

int

The structural hash, or 0 when obj is null.