/// <summary>
/// Add a property value from a message to a projection
/// </summary>
/// <typeparam name="TMessage">A message type</typeparam>
/// <typeparam name="TProjection">A projection type</typeparam>
/// <typeparam name="TValue">A type of projection property</typeparam>
/// <param name="source">An argument builder that contains resulting mapper</param>
/// <param name="projectionProperty">An expression that identifies a projection property</param>
/// <param name="getValue">A function to extract a value from a message</param>
/// <returns>An argument builder that contains resulting mapper</returns>
public static IRegisterMappers <TMessage, TProjection> Add <TMessage, TProjection, TValue>(
this IRegisterMappers <TMessage, TProjection> source,
Expression <Func <TProjection, TValue> > projectionProperty,
Func <TMessage, TValue> getValue) where TValue : IComparable <TValue>
{
return(source.Do(ReflectionHelpers.CreateBinaryOperation(ExpressionType.Add, projectionProperty), getValue));
}
private static IRegisterMappers <TMessage, TProjection> Do <TMessage, TProjection, TValue>(
this IRegisterMappers <TMessage, TProjection> source,
Action <TProjection, TValue> action,
Func <TMessage, TValue> getValue)
{
return(source.Do((e, p) => action(p, getValue(e))));
}
/// <summary>
/// Map a property from a message to a projection
/// </summary>
/// <typeparam name="TMessage">A message type</typeparam>
/// <typeparam name="TProjection">A projection type</typeparam>
/// <typeparam name="TValue">A type of projection property</typeparam>
/// <param name="source">An argument builder that contains resulting mapper</param>
/// <param name="projectionProperty">An expression that identifies a projection property</param>
/// <param name="getValue">A function to extract a value from a message</param>
/// <returns>An argument builder that contains resulting mapper</returns>
public static IRegisterMappers <TMessage, TProjection> Map <TMessage, TProjection, TValue>(
this IRegisterMappers <TMessage, TProjection> source,
Expression <Func <TProjection, TValue> > projectionProperty,
Func <TMessage, TValue> getValue)
{
return(source.Do(ReflectionHelpers.CreateSetOperation(projectionProperty), getValue));
}
/// <summary>
/// Set a property value
/// </summary>
/// <typeparam name="TMessage">A message type</typeparam>
/// <typeparam name="TProjection">A projection type</typeparam>
/// <typeparam name="TValue">A type of projection property</typeparam>
/// <param name="source">An argument builder that contains resulting mapper</param>
/// <param name="projectionProperty">An expression that identifies a projection property</param>
/// <param name="value">A new value for the property</param>
/// <returns>An argument builder that contains resulting mapper</returns>
public static IRegisterMappers <TMessage, TProjection> Set <TMessage, TProjection, TValue>(
this IRegisterMappers <TMessage, TProjection> source,
Expression <Func <TProjection, TValue> > projectionProperty,
TValue value)
{
return(source.Do((e, p) => ReflectionHelpers.CreateSetOperation(projectionProperty)(p, value)));
}
