Class Transformer<T>

Namespace: Open.Database.Extensions.Core

Assembly: Open.Database.Extensions.Core.dll

Utility of transforming retrieved data into models matching the type parameter provided.

public class Transformer<T> where T : new()

Type Parameters

T: The type of the model to create from the data.

Inheritance: object

Transformer<T>

Inherited Members: object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Remarks

The mapping is a compiled, cached Open.Database.Extensions.Core.RowPlan<T>: constructing a transformer and applying it to a result no longer rebuilds lookups or property setters per query.

Constructors

Transformer(IEnumerable<KeyValuePair<string, string?>>?): Constructs a transformer using the optional field overrides.

Fields

LocalPool: Buffers for transforming.

MaxArrayBuffer: Maximum number of arrays to hold in the local array pool per bucket. May also define how many records are pre buffered before transforming.

Properties

ColumnNames: The column names.

PropertyNames: The property names.

Type: The type of T.

Methods

AsDequeueingEnumerable(QueryResult<Queue<object?[]>>): Dequeues the results and transforms each one by one during enumeration.

AsDequeueingEnumerable(QueryResult<Queue<object[]>>, ArrayPool<object>, bool): Dequeues the results and transforms each one by one during enumeration.

Create(): Static utility for creating a Transformer T.

Create(params IEnumerable<KeyValuePair<string, string?>>?): Static utility for creating a Transformer T.

Create(params IEnumerable<(string Field, string? Column)>?): Static utility for creating a Transformer T.

Results(DataTable, bool): Processes the data from the data table into a queue. Then dequeues the results and transforms each one by one during enumeration.

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