Composite

The Composite Pattern enables us to collect objects into trees that can be easily explored. The Parent represents the access point to the tree, where it in fact will be a Container, usually. The container will be able to contain other Container objects or Leaf objects.

Often the sublcasses or the leaves can be instantiated thorugh the various factory patterns.

Usage

Typical example is the file system. every folder and every single file are files. Folders contain also other files.

Examples

• File system