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In object-oriented computer programming, a null object is an object with no referenced value or with defined neutral (null) behavior.The null object design pattern, which describes the uses of such objects and their behavior (or lack thereof), was first published as "Void Value" [1] and later in the Pattern Languages of Program Design book series as "Null Object".
Code that performs some privileged action will make a demand for one or more permissions. The demand makes the CLR walk the call stack and for each method the CLR will ensure that the demanded permissions are in the method's assembly's granted permissions. If the permission is not granted then a security exception is thrown. This prevents ...
Directory junctions are soft links (they will persist even if the target directory is removed), working as a limited form of symbolic links (with an additional restriction on the location of the target), but it is an optimized version allowing faster processing of the reparse point with which they are implemented, with less overhead than the ...
Symmetrically, the immediate tasks performed by NTFS in a typical file deletion event, when deleting a hard link, are simply: removing the reference to the link from the directory file containing it (the root directory, if applicable); and decrementing by 1 the reference counts of the MFT record targeted by the link, and, of the entry ...
Active Directory (AD) is a directory service developed by Microsoft for Windows domain networks. Windows Server operating systems include it as a set of processes and services . [ 1 ] [ 2 ] Originally, only centralized domain management used Active Directory.
On the mainframe operating system MUSIC/SP, if one asks for the file name "X", one is making an unqualified reference either to the file X in the user's library, or to the file X in the common library if the user does not have a file named X and one does exist in the common library. If, however, one were to refer to "*COM:X" one is using a ...
A file (not a directory) that disables the application by returning the contents of the file for any application request. App_Themes Adds a folder that holds files related to themes, which is a new ASP.NET feature that helps ensure a consistent appearance throughout a Web site and makes it easier to change the Web site's appearance when necessary.
where name_of_directory is the name of the directory one wants to create. When typed as above (i.e. normal usage), the new directory would be created within the current directory. On Unix and Windows (with Command extensions enabled, [15] the default [16]), multiple directories can be specified, and mkdir will try to create all of them.