layout	title	folder	permalink	categories	tags
pattern	Execute Around	execute-around	/patterns/execute-around/	Idiom	Extensibility

Intent

Execute Around idiom frees the user from certain actions that should always be executed before and after the business method. A good example of this is resource allocation and deallocation leaving the user to specify only what to do with the resource.

Class diagram

Applicability

Use the Execute Around idiom when

• you use an API that requires methods to be called in pairs such as open/close or allocate/deallocate.

Credits

• Functional Programming in Java: Harnessing the Power of Java 8 Lambda Expressions