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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

Untargeted bindings

Binding that can be created without target is known as an untargeted bindings. These are really signs to the injector around a type, so that the dependencies are arranged eagerly. In untargeted binding, we do not require the to clause:

bind(SampleConcreteClass.class).in(Singleton.class);
//Another way to define untargeted bindingbind(String.class).toInstance("./alerts/");

In this statement, the injector would prepare an instance of the String class eagerly with a value of  ./alerts/. When dependency injection requires it to inject the instance of String, it will inject this specific instance. This binding is useful when defining concrete classes and types annotated by @ImplementedBy or @ProvidedBy

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Publisher Resources

ISBN: 9781788296250Supplemental Content