Term
|
Definition
| Ensure a class has only one instance, and provide a global point of access to it. |
|
|
Term
|
Definition
| Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces. |
|
|
Term
|
Definition
| Attach additional responsibilities to an object dynamically keeping the same interface. Decorators provide a flexible alternative to subclassing for extending functionality. |
|
|
Term
|
Definition
| Represent an operation to be performed on the elements of an object structure. Visitor lets you define a new operation without changing the classes of the elements on which it operates. |
|
|
