Everything about Binding Computer Science totally explained
In
computer science,
binding is the creation of a simple
reference to something that's larger and more complicated and used frequently. The simple reference can be used instead of having to repeat the larger thing. A binding is such a reference.
Types of binding
The following are commonly referred to as bindings.
Language or Name binding
The terms
language binding and
name binding refer to both the linking of libraries to application programs, and to the way symbols (variable names) are handled by compilers.
In
programming languages, these terms mean the references of an identifier to a value. In this context, binding is the act of associating a name or symbol with a machine address, and this association
may occur either at compile time, in which case it's called 'static
linking', or it may occur dynamically at
runtime, which is called 'dynamic linking'. The terms binding and linking are used interchangeably in some contexts.
Static binding has an additional characteristic: it prevents libraries from being updated (recompiled) independently of applications.
XML data binding
Command binding
Command bindings, commonly referred to as
keyboard macros, or simply macros, are frequently built into professional quality
computer applications. In many of these, bindings can be modified or added, but usually can not be removed (for example, the keystroke combination can't be unassociated from the function with which it's associated).
As an example of a command binding, most applications on
Mac OS bind the "Save" menu item to the Command-S
keyboard shortcut, so that Command-S can be used to save a document instead of having to navigate to that menu item each time. The
Emacs text editor binds the "save-buffers-kill-emacs" command to the Control-X Control-C keystrokes in sequence, so that the user doesn't have to type "save-buffers-kill-emacs" whenever he/she wants to save and quit. Some computer applications, such as
Microsoft Excel, allow the user to create a macro to do several common operations in sequence, and then bind a simple command to that macro to activate it.
Control bindings also exist in
video games. A game might have a "shoot" control, which can be bound to any available key. A game like
Tribes with complicated in-game menus can bind specific sequences of keys as shortcuts to menu items.
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