/** # Strongly typed field access
*
* Several places in the elasticsearch API expect the path to a field from your original source document as a string.
* NEST allows you to use C# expressions to strongly type these field path strings.
*
* These expressions are assigned to a type called `Field` and there are several ways to create a instance of that type
*/
/** Using the constructor directly is possible but rather involved */
[U] public void UsingConstructors()
{
var fieldString = new Field {
Name = "name"
};
/** especially when using C# expressions since these can not be simply new'ed*/
Expression <Func <Project, object> > expression = p => p.Name;
var fieldExpression = Field.Create(expression);
Expect("name")
.WhenSerializing(fieldExpression)
.WhenSerializing(fieldString);
}
public Fields And(string field, double?boost = null)
{
this.ListOfFields.Add(Field.Create(field, boost));
return(this);
}
public Fields And <T>(Expression <Func <T, object> > field, double?boost = null) where T : class
{
this.ListOfFields.Add(Field.Create(field, boost));
return(this);
}