Class OptimisticLockPropertyBaseAttribute

Namespace

LinqToDB.Concurrency

Assembly

linq2db.dll

Defines optimistic lock column value generation strategy for update. Used with ConcurrencyExtensions extensions.

[AttributeUsage(AttributeTargets.Property|AttributeTargets.Field)]
public abstract class OptimisticLockPropertyBaseAttribute : MappingAttribute, _Attribute

Inheritance

object

Attribute

MappingAttribute

OptimisticLockPropertyBaseAttribute

Implements

_Attribute

Derived

OptimisticLockPropertyAttribute

Inherited Members

MappingAttribute.Configuration

MappingAttribute.GetHashCode()

MappingAttribute.Equals(object)

Extension Methods

Sql.IsDistinctFrom<T>(T, T)

Sql.IsNotDistinctFrom<T>(T, T)

SqlExtensions.In<T>(T, T, T)

SqlExtensions.In<T>(T, T, T, T)

SqlExtensions.In<T>(T, params T[])

SqlExtensions.In<T>(T, IEnumerable<T>)

SqlExtensions.In<T>(T, IQueryable<T>)

SqlExtensions.NotIn<T>(T, T, T)

SqlExtensions.NotIn<T>(T, T, T, T)

SqlExtensions.NotIn<T>(T, params T[])

SqlExtensions.NotIn<T>(T, IEnumerable<T>)

SqlExtensions.NotIn<T>(T, IQueryable<T>)

Constructors

OptimisticLockPropertyBaseAttribute()

protected OptimisticLockPropertyBaseAttribute()

Methods

GetNextValue(ColumnDescriptor, ParameterExpression)

Returns expression for new value for optimistic lock column on successful update. Should return null if value generated by database.

public abstract LambdaExpression? GetNextValue(ColumnDescriptor column, ParameterExpression record)

Parameters

column ColumnDescriptor

Column descriptor.

record ParameterExpression

Current record variable.

Returns

LambdaExpression

GetObjectID()

Returns mapping attribute id, based on all attribute options.

public override string GetObjectID()

Returns

string