I am creating a object of Microsoft.Web.WebView2.WinForm.WebView2 but the sub obect of this coreWebView2 is null Microsoft.Web.WebView2.WinForm.WebView2 webView = new Microsoft.Web.WebView2.WinForm...

Is there any way to do Null Objects with Java Records? With classes I'd do it like that: public class Id { public static final Id NULL_ID = new Id(); private String id; public Id(String id) {...

Is there a specific design pattern that describes the scenario where a non-abstract default implementation is provided that implements all or some of the methods on the interface with empty, NO-OP ...

public class ShowBPGraphActivity extends AppCompatActivity { public GraphView graphView; public LineGraphSeries <DataPoint>lineGraphSeries; public String systolicbp; public String dias...

I'm wondering if there is any approach to implement generic null object pattern in C#. The generic null object is the subclass of all the reference types, just like Nothing in Scala. It seems like ...

After Reading: Effective Java (See Item 43) - Joshua Bloch Clean Code (Don't Return Null) - Uncle Bob Avoiding != null statements Null Object pattern I was looking for an answer to the questio...

I'm not even sure if I have a problem, but I just don't like that my text_fields and text_areas get saved in the db as empty string instead of nil. I'm playing with the null object pattern and jus...

There seems to be a growing community of people saying that you should never return null and should always use the Null Object Pattern instead. I can see the usefullness of the NOP when using a col...

I recently watched this youtube tutorial on the Null Object design pattern. Even though there were some errors in it: such as the NullCar that doesn't do anything creates an infinite loop, the conc...

Lately I have come across Null Object design pattern and my colleagues say it can be used to do away with the null pointer checks that are encountered throughout the code. for e.g suppose a DAO c...

I an application where a Post belongs_to :user I want to retain posts for deleted users. This can cause errors in the view when viewing a post whose author was deleted. I tried to do this: class P...

How can I create an Object in ruby that will be evaluated to false in logical expressions similar to nil? My intention is to enable nested calls on other Objects where somewhere half way down the ...

Can I get a dummy logger from slf4j? (Think the null object design pattern.) If so, can someone provide an example? Or will I have to implement a custom logger if I want to do that? I'm hoping to ...

The NullObjectPattern is intended to be a "safe" ( neutral ) behavior. The idea is create an object that don't do anything ( but doesn't throw NullPointerException either ) For instance the cla...

I have a struct Foo. In pseudocode: def FindFoo: foo = results of search foundFoo = true if a valid foo has been found return foo if foundFoo else someErrorCode How can I accomplish this in...

Is there a way to implement the null object design pattern in a generic form so that i don't need to implement it for every buisness object. For me, there are two high level classes you'll need fo...