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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

Inject

Guice provides the @Inject annotation to indicate that a consumer is dependent on a particular dependency. The injector takes care of initializing this dependency using the object graph. Guice gets a hint from the annotation that it needs to participate in the class construction phase. The @Inject annotation can be utilized in a constructor for a class, for a method, or for a field. Consider the following code:

//Field level injection@Injectprivate NotificationService notificationService;//Constructor level Injection@Injectpublic AppConsumer(NotificationService service){     this.notificationService=service;}//Method  level injection@Injectpublic void setService(NotificationService service) {    this.notificationService = service;}
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Publisher Resources

ISBN: 9781788296250Supplemental Content