Skip to Content
Java 9 Dependency Injection
book

Java 9 Dependency Injection

by Nilang Patel, Krunal Patel
April 2018
Intermediate to advanced content levelIntermediate to advanced
246 pages
6h 11m
English
Packt Publishing
Content preview from Java 9 Dependency Injection

Interface injection

Interface injection defines a way by which the dependency provider should talk to a client. It abstracts the process of passing dependency. The dependency provider defines an interface that all clients need to implement. This method is not so frequently used.

Technically, interface injection and setter injection are the same. They both use some sort of method to inject dependency. However, for interface injection, the method is defined by objects which provide the dependency.

Let's apply interface injection to our balance sheet module:

public interface IFetchAndExport {  void setFetchData(IFetchData fetchData);  void setExportData(IExportData exportData);}//Client class implements interfacepublic class BalanceSheet implements ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Pro CDI 2 in Java EE 8: An In-Depth Guide to Context and Dependency Injection

Pro CDI 2 in Java EE 8: An In-Depth Guide to Context and Dependency Injection

Jan Beernink, Arjan Tijms
Dependency Injection

Dependency Injection

Dhananjay Prasanna

Publisher Resources

ISBN: 9781788296250Supplemental Content