Null object pattern: Difference between revisions

Revision as of 23:59, 16 June 2023

Revision as of 05:42, 19 June 2023

Line 437:

The following null object pattern implementation demonstrates the concrete class providing its corresponding null object in a static field <code>Empty</code>. This approach is frequently used in the .NET Framework (<code>String.Empty</code>, <code>EventArgs.Empty</code>, <code>Guid.Empty</code>, etc.).

<syntaxhighlight lang="vbvbnet">

Public Class Animal

Public Shared ReadOnly Empty As Animal = New AnimalEmpty()