File handlers are mechanisms which provide abstraction over primitive file operations.
File handlers are modules (e.g. classes) which wrap primitive file operations
(e.g. read, write) and file system operations (e.g. unlink, move, file watching)
in helpful abstractions for specific usage scenarios.
For example, a file handler implemented as a class in c++ opens a file in the
csv format, reads each entry, and populates a list of row objects. In this case,
the file handler has wrapped the open and read calls so the the caller need only
know the name of the file.
Questions relating to the development of custom file handlers should include this tag. Additionally, questions which involve the use of standard or third-party file handlers may also include this tag.
See also:
