spring-restbucks | Practice based on Spring projects | Object-Relational Mapping library
kandi X-RAY | spring-restbucks Summary
kandi X-RAY | spring-restbucks Summary
The implementation consists of mainly two parts, the order and the payment part. The Orders are exposed as REST resources using Spring Data RESTs capability to automatically expose Spring Data JPA repositories contained in the application. The Payment process and the REST application protocol described in the book are implemented manually using a Spring MVC controller (PaymentController).
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Top functions reviewed by kandi - BETA
- Handles an orderPaid event .
- Parses a credit card .
- Downloads a file from an URL .
- Adds a refill item to the order .
- Submits a payment for an order
- Creates configuration for Halids .
- Saves the orders .
- Gets a list of drinks .
- Process order .
- Place an order .
spring-restbucks Key Features
spring-restbucks Examples and Code Snippets
Community Discussions
Trending Discussions on spring-restbucks
QUESTION
What are the differences of using Spring Data REST repository alone and implementing the “service” pattern around it (that is ItemService
, ItemServiceImpl
and so on)?
At the first glance the functionality is more or less the same with the difference that the service approach allows for a better customization but it also produces loads of boilerplate code (the implementation and the controller). Here is an example (look Payment
and CreditCard
entities) of using both approaches - RESTBucks of Oliver Drotbohm.
The payment abstraction there uses the "service" pattern used (PaymentService, PaymentImpl and then PaymentController with all methods in web folder) while the orders are exposed via Spring Data REST directly.
...ANSWER
Answered 2020-Sep-21 at 12:00Your service contains all the logic, but the repository layer is as stupid as possible. Its task is a specific operation(for ex. save, edit).
Spring Data is an additional convenient mechanism for interacting with database entities, organizing them in a repository, extracting data, changing it. in some cases, it will be enough to declare the interface and method in it, without implementing it. P.S and it's a good choice if you're creating a simple crud
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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Install spring-restbucks
For the usage inside an IDE do the following:.
Make sure you have an Eclipse with m2e installed (preferably STS).
Install Lombok. Download it from the project page. Run the JAR (double click or java -jar …). Point it to your Eclipse installation, run the install. Restart Eclipse.
Import the checked out code through File > Import > Existing Maven Project…
The main abstraction working with hypermedia elements is HypermediaRemoteResource. It allows to define client behavior conditionally based on the presence of links in the representations. For example, see this snippet from OrderDetailsActivity:. The closure is only executed if the link with a relation restbucks:cancel is actually present. It then enables the button and registers CancelOrder action for execution on invocation.
Have Android Studio installed.
Import the project from android-studio.
Make sure the server runs.
In Android Studio, run the application in the simulator.
In the application, browse existing orders, trigger payments and cancellations.
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