Class Lookup<TSource, TKey>

Namespace

NMF.Expressions.Linq

Assembly

NMF.Expressions.Utilities.dll

Denotes an incremental lookup implementation

public class Lookup<TSource, TKey> : ILookupExpression<TSource, TKey>, IEnumerableExpression<TKey>, IEnumerable<TKey>, IEnumerableExpression, IEnumerable

Type Parameters

TSource

The source type of elements

TKey

The key type

Inheritance

object

Lookup<TSource, TKey>

Implements

ILookupExpression<TSource, TKey>

IEnumerableExpression<TKey>

IEnumerable<TKey>

IEnumerableExpression

IEnumerable

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Extension Methods

ExpressionExtensions.Cast<TResult>(IEnumerableExpression)

ExpressionExtensions.OfType<TResult>(IEnumerableExpression)

ChunkExtensions.ChunkIndexed<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<(T, int)>, int, TResult>)

ChunkExtensions.ChunkIndexed<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<(T, int)>, int, TResult>, IChunkBalancingStrategyProvider)

ChunkExtensions.ChunkIndexed<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<(T, int)>, int, TResult>, IChunkBalancingStrategyProvider<(T, int), TResult>)

ChunkExtensions.Chunk<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<T>, int, TResult>)

ChunkExtensions.Chunk<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<T>, int, TResult>, IChunkBalancingStrategyProvider)

ChunkExtensions.Chunk<T, TResult>(IEnumerableExpression<T>, int, Func<IEnumerableExpression<T>, int, TResult>, IChunkBalancingStrategyProvider<T, TResult>)

ExpressionExtensions.All<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>)

ExpressionExtensions.Any<TSource>(IEnumerableExpression<TSource>)

ExpressionExtensions.Any<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, decimal>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, double>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, int>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, long>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, decimal?>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, double?>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, int?>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, long?>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, float?>>)

ExpressionExtensions.Average<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, float>>)

ExpressionExtensions.Concat<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>)

ExpressionExtensions.Contains<TSource>(IEnumerableExpression<TSource>, TSource)

ExpressionExtensions.Contains<TSource>(IEnumerableExpression<TSource>, TSource, IEqualityComparer<TSource>)

ExpressionExtensions.Count<TSource>(IEnumerableExpression<TSource>)

ExpressionExtensions.Count<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>)

ExpressionExtensions.Distinct<TSource>(IEnumerableExpression<TSource>)

ExpressionExtensions.Distinct<TSource>(IEnumerableExpression<TSource>, IEqualityComparer<TSource>)

ExpressionExtensions.Except<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>)

ExpressionExtensions.Except<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

ExpressionExtensions.FirstOrDefault<TSource>(IEnumerableExpression<TSource>)

ExpressionExtensions.FirstOrDefault<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>)

ExpressionExtensions.GroupBy<TSource, TKey>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>)

ExpressionExtensions.GroupBy<TSource, TKey>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>, IEqualityComparer<TKey>)

ExpressionExtensions.GroupBy<TSource, TKey, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey, IEnumerable<TSource>, TResult>>)

ExpressionExtensions.GroupBy<TSource, TKey, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>, Expression<Func<TKey, IEnumerable<TSource>, TResult>>, IEqualityComparer<TKey>)

ExpressionExtensions.GroupJoin<TOuter, TInner, TKey, TResult>(IEnumerableExpression<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, IEnumerable<TInner>, TResult>>)

ExpressionExtensions.GroupJoin<TOuter, TInner, TKey, TResult>(IEnumerableExpression<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, IEnumerable<TInner>, TResult>>, IEqualityComparer<TKey>)

ExpressionExtensions.Intersect<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>)

ExpressionExtensions.Intersect<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

ExpressionExtensions.IsProperSubsetOf<T>(IEnumerableExpression<T>, IEnumerable<T>)

ExpressionExtensions.IsProperSubsetOf<T>(IEnumerableExpression<T>, IEnumerable<T>, IEqualityComparer<T>)

ExpressionExtensions.IsProperSupersetOf<T>(IEnumerableExpression<T>, IEnumerable<T>)

ExpressionExtensions.IsProperSupersetOf<T>(IEnumerableExpression<T>, IEnumerable<T>, IEqualityComparer<T>)

ExpressionExtensions.IsSubsetOf<T>(IEnumerableExpression<T>, IEnumerable<T>)

ExpressionExtensions.IsSubsetOf<T>(IEnumerableExpression<T>, IEnumerable<T>, IEqualityComparer<T>)

ExpressionExtensions.IsSupersetOf<T>(IEnumerableExpression<T>, IEnumerable<T>)

ExpressionExtensions.IsSupersetOf<T>(IEnumerableExpression<T>, IEnumerable<T>, IEqualityComparer<T>)

ExpressionExtensions.Join<TOuter, TInner, TKey, TResult>(IEnumerableExpression<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, TInner, TResult>>)

ExpressionExtensions.Join<TOuter, TInner, TKey, TResult>(IEnumerableExpression<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, TInner, TResult>>, IEqualityComparer<TKey>)

ExpressionExtensions.Max<TSource>(IEnumerableExpression<TSource>, IComparer<TSource>)

ExpressionExtensions.Max<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult?>>)

ExpressionExtensions.Max<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult?>>, IComparer<TResult>)

ExpressionExtensions.Max<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>)

ExpressionExtensions.Max<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>, IComparer<TResult>)

ExpressionExtensions.Max<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>, Func<TSource, TResult>)

ExpressionExtensions.Min<TSource>(IEnumerableExpression<TSource>, IComparer<TSource>)

ExpressionExtensions.Min<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult?>>)

ExpressionExtensions.Min<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult?>>, IComparer<TResult>)

ExpressionExtensions.Min<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>)

ExpressionExtensions.Min<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>, IComparer<TResult>)

ExpressionExtensions.OrderByDescending<TItem, TKey>(IEnumerableExpression<TItem>, Expression<Func<TItem, TKey>>)

ExpressionExtensions.OrderByDescending<TItem, TKey>(IEnumerableExpression<TItem>, Expression<Func<TItem, TKey>>, IComparer<TKey>)

ExpressionExtensions.OrderBy<TItem, TKey>(IEnumerableExpression<TItem>, Expression<Func<TItem, TKey>>)

ExpressionExtensions.OrderBy<TItem, TKey>(IEnumerableExpression<TItem>, Expression<Func<TItem, TKey>>, IComparer<TKey>)

ExpressionExtensions.SelectMany<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, IEnumerable<TResult>>>)

ExpressionExtensions.SelectMany<TSource, TIntermediate, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, IEnumerable<TIntermediate>>>, Expression<Func<TSource, TIntermediate, TResult>>)

ExpressionExtensions.Select<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>)

ExpressionExtensions.Select<TSource, TResult>(IEnumerableExpression<TSource>, Expression<Func<TSource, TResult>>, Func<TSource, TResult>)

ExpressionExtensions.SetEquals<T>(IEnumerableExpression<T>, IEnumerable<T>)

ExpressionExtensions.SetEquals<T>(IEnumerableExpression<T>, IEnumerable<T>, IEqualityComparer<T>)

ExpressionExtensions.SingleOrDefault<TSource>(IEnumerableExpression<TSource>)

ExpressionExtensions.SingleOrDefault<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>)

ExpressionExtensions.SingleOrDefault<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, bool>>, Func<TSource, bool>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, decimal>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, double>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, int>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, long>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, decimal?>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, double?>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, int?>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, long?>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, float?>>)

ExpressionExtensions.Sum<TSource>(IEnumerableExpression<TSource>, Expression<Func<TSource, float>>)

ExpressionExtensions.TopX<TItem, TKey>(IEnumerableExpression<TItem>, int, Expression<Func<TItem, TKey>>)

ExpressionExtensions.TopX<TItem, TKey>(IEnumerableExpression<TItem>, int, Expression<Func<TItem, TKey>>, IComparer<TKey>)

ExpressionExtensions.Union<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>)

ExpressionExtensions.Union<TSource>(IEnumerableExpression<TSource>, IEnumerable<TSource>, IEqualityComparer<TSource>)

ExpressionExtensions.Where<T>(IEnumerableExpression<T>, Expression<Func<T, bool>>)

ExpressionExtensions.Where<T>(IEnumerableExpression<T>, Expression<Func<T, bool>>, Func<T, bool>)

LookupExtensions.ToLookup<TSource, TKey>(IEnumerableExpression<TSource>, Expression<Func<TSource, TKey>>)

ExpressionExtensions.AsOne<T>(T)

ChunkExtensions.ChunkIndexed<T, TResult>(IEnumerable<T>, int, Func<IEnumerableExpression<(T, int)>, int, TResult>)

ChunkExtensions.Chunk<T, TResult>(IEnumerable<T>, int, Func<IEnumerableExpression<T>, int, TResult>)

ObservableExtensions.WithUpdates<T>(IEnumerable<T>)

ObservableExtensions.WithUpdates<T>(IEnumerable<T>, bool)

Constructors

Lookup(IEnumerableExpression<TSource>, ObservingFunc<TSource, TKey>)

Creates a new lookup for the given source and key selector

public Lookup(IEnumerableExpression<TSource> source, ObservingFunc<TSource, TKey> keySelector)

Parameters

source IEnumerableExpression<TSource>

The source collection

keySelector ObservingFunc<TSource, TKey>

A function that selects the keys of a given element

Properties

this[TKey]

Gets the elements for the provided key

public IEnumerableExpression<TSource> this[TKey key] { get; }

Parameters

key TKey

The key

Property Value

IEnumerableExpression<TSource>

The elements for this key

Keys

Gets a collection of keys

public IEnumerableExpression<TKey> Keys { get; }

Property Value

IEnumerableExpression<TKey>

Methods

AsNotifiable()

Gets notifications for this collection

public INotifyEnumerable<TKey> AsNotifiable()

Returns

INotifyEnumerable<TKey>

A collection that will notify clients as new elements change

GetEnumerator()

Returns an enumerator that iterates through the collection.

public IEnumerator<TKey> GetEnumerator()

Returns

IEnumerator<TKey>

An enumerator that can be used to iterate through the collection.