Exam 70-487 topic 1 question 119 discussion

DRAG DROP -
You are developing a WCF Data Services service in Visual Studio to display movie information from a SQL Server database that changes every 24 hours. The service is defined in the following class.

The application contains the following Entity Framework model.

The service must only return data for movies that are currently in theaters.
You need to add a method to the MovieService class to filter the data.
You have the following code:

Which code segments should you include in Target 1, Target 2 and Target 3 to complete the code? To answer, drag the appropriate code segments to the correct targets in the answer area. Each code segment may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content.
Each correct selection is worth one point.
NOTE:
Select and Place:

Suggested Answer:
Box 1: QueryInterceptor -
[QueryInterceptor( EntitySetName )]
Methods with the QueryInterceptorAttribute attribute applied are called when an HTTP GET request is received for the targeted entity set resource. These methods must always return a lambda expression in the form of Expression<Func<T,bool>>.
Box 2: "MovieEntities"

Box 3: Expression -
Example code:
// Define a query interceptor for the Orders entity set.
[QueryInterceptor("Orders")]
public Expression<Func<Order, bool>> OnQueryOrders()
Incorrect Answers:
ChangeInterceptor: Methods with the ChangeInterceptorAttribute attribute applied are called when an HTTP request other than HTTP GET request is received for the targeted entity set resource. These methods must always return void (Nothing in Visual Basic).
References:
https://docs.microsoft.com/en-us/dotnet/framework/data/wcf/interceptors-wcf-data-services