layout	title	folder	permalink	categories	language	tags
pattern	Delegation	delegation	/patterns/delegation/	Structural	en	Decoupling

Also known as

Proxy Pattern

Intent

It is a technique where an object expresses certain behavior to the outside but in reality delegates responsibility for implementing that behaviour to an associated object.

Class diagram

Applicability

Use the Delegate pattern in order to achieve the following

• Reduce the coupling of methods to their class
• Components that behave identically, but realize that this situation can change in the future.

Credits

• Delegate Pattern: Wikipedia
• Proxy Pattern: Wikipedia