29 lines
976 B
Markdown
29 lines
976 B
Markdown
---
|
|
layout: pattern
|
|
title: Execute Around
|
|
folder: execute-around
|
|
permalink: /patterns/execute-around/
|
|
pumlid: NSZ14G8n20NGLhI0XBlT865suoGa0n_NylNixSsxTvEHJTF7xGHsF8YShtfqdFdCK9TbK4ELDQcFl1ZizE8tbwRH3okR0NKBcXm_a7vK4bhOLreZXVnLJPzrvnnV
|
|
categories: Other
|
|
tags:
|
|
- Java
|
|
- Difficulty-Beginner
|
|
- Idiom
|
|
---
|
|
|
|
## 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.
|
|
|
|
|
|
|
|
## 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](http://www.amazon.com/Functional-Programming-Java-Harnessing-Expressions/dp/1937785467/ref=sr_1_1)
|