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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

The factory method pattern

The factory method pattern concerns defining an interface (or abstract class) method for creating dependency objects. This method is called a factory method. The class (or interface) that holds the factory method will be considered an abstract creator. The actual object creation process does not happen in the factory method directly. 

The concrete creators (which implement the factory method) will decide which dependent class to instantiate. In short, the dependent object is decided at runtime. This process has been described in the following diagram:

The factory pattern's implementation is a four-step process:

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Publisher Resources

ISBN: 9781788296250Supplemental Content