Interface IEntityUpdateSpec<TTarget, TBuilder>

Namespace

LinqToDB.Linq

Assembly

linq2db.dll

F-bounded base for entity-UPDATE-builder fluent chains. Declares the chain methods that are common to standalone Update (IEntityUpdateSpec<TTarget>) and the Upsert UPDATE branch (IUpsertUpdateSpec<TTarget>); each leaf interface substitutes itself as TBuilder so chain methods return the correct concrete builder type.

public interface IEntityUpdateSpec<TTarget, TBuilder> where TTarget : notnull where TBuilder : IEntityUpdateSpec<TTarget, TBuilder>

Type Parameters

TTarget

Target table record type.

TBuilder

Concrete leaf builder type (F-bound: must derive from this interface with itself substituted).

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>)

Remarks

This interface is used only as the receiver type of an expression tree captured by linq2db. The configure expression is parsed by linq2db and is not invoked; implementing this interface is not a supported extension point.

Methods

Ignore<TV>(Expression<Func<TTarget, TV>>)

Excludes a target column from the UPDATE statement.

TBuilder Ignore<TV>(Expression<Func<TTarget, TV>> field)

Parameters

field Expression<Func<TTarget, TV>>

Returns

TBuilder

Type Parameters

TV

Set<TV>(Expression<Func<TTarget, TV>>, Expression<Func<TTarget, TTarget, TV>>)

Sets a target column's value during UPDATE from both the current target row and the source row.

TBuilder Set<TV>(Expression<Func<TTarget, TV>> field, Expression<Func<TTarget, TTarget, TV>> value)

Parameters

field Expression<Func<TTarget, TV>>

value Expression<Func<TTarget, TTarget, TV>>

Returns

TBuilder

Type Parameters

TV

Set<TV>(Expression<Func<TTarget, TV>>, Expression<Func<TTarget, TV>>)

Sets a target column's value during UPDATE from the source row.

TBuilder Set<TV>(Expression<Func<TTarget, TV>> field, Expression<Func<TTarget, TV>> value)

Parameters

field Expression<Func<TTarget, TV>>

value Expression<Func<TTarget, TV>>

Returns

TBuilder

Type Parameters

TV

Set<TV>(Expression<Func<TTarget, TV>>, Expression<Func<TV>>)

Sets a target column's value during UPDATE from a context-free expression.

TBuilder Set<TV>(Expression<Func<TTarget, TV>> field, Expression<Func<TV>> value)

Parameters

field Expression<Func<TTarget, TV>>

value Expression<Func<TV>>

Returns

TBuilder

Type Parameters

TV