218ba44dbf
* Upgrade maven plugins * Upgrade maven plugins Some general code cleanup was necessary due to upgrade of PMD and checkstyle. Also needed to add Junit 4 as a dependency due to Mockito.timout issue found here: https://github.com/mockito/mockito/issues/152
layout, title, folder, permalink, categories, tags
| layout | title | folder | permalink | categories | tags | ||
|---|---|---|---|---|---|---|---|
| pattern | Service Layer | service-layer | /patterns/service-layer/ | Architectural |
|
Intent
Service Layer is an abstraction over domain logic. Typically applications require multiple kinds of interfaces to the data they store and logic they implement: data loaders, user interfaces, integration gateways, and others. Despite their different purposes, these interfaces often need common interactions with the application to access and manipulate its data and invoke its business logic. The Service Layer fulfills this role.
Applicability
Use the Service Layer pattern when
- you want to encapsulate domain logic under API
- you need to implement multiple interfaces with common logic and data