Class ParseMessagePayload

Represents an operator which extracts the payload data from an observable sequence of Harp messages.

public class ParseMessagePayload : SelectBuilder, IExpressionBuilder

Inheritance: object

ExpressionBuilder

SingleArgumentExpressionBuilder

SelectBuilder

ParseMessagePayload

Inherited Members: SingleArgumentExpressionBuilder.ArgumentRange

ExpressionBuilder.ToString()

ExpressionBuilder.Unwrap(ExpressionBuilder)

ExpressionBuilder.GetWorkflowElement(ExpressionBuilder)

ExpressionBuilder.GetVisualizerElement(ExpressionBuilder)

ExpressionBuilder.GetVisualizerMappings(ExpressionBuilder)

ExpressionBuilder.FromWorkflowElement(object, ElementCategory)

ExpressionBuilder.GetElementDisplayName(Type)

ExpressionBuilder.GetElementDisplayName(object)

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

Properties

Gets or sets the expected message address. This parameter is optional.

public int? Address { get; set; }

Gets or sets a value indicating whether the payload is an array.

public bool IsArray { get; set; }

Gets or sets the type of payload data to parse.

public PayloadType PayloadType { get; set; }

Generates an Expression node from a collection of input arguments. The result can be chained with other builders in a workflow.

public override Expression Build(IEnumerable<Expression> arguments)

arguments IEnumerable<Expression>: A collection of Expression nodes that represents the input arguments.

Returns the expression that specifies how to extract the payload data from a valid Harp message.

protected override Expression BuildSelector(Expression expression)

Expression: The Expression that maps the input Harp message parameter to the specified payload data type.