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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

Static factory method 

When you want to encapsulate the logic of creating the instance in a static way to custom methods, you can use a static factory method. In this case, Spring will use the Class attribute of <bean> to call the factory method and generate instances. Let's understand this by looking at the following example:

public class SearchableFactory {  private static SearchableFactory searchableFactory;    //Static factory method to get instance of Searchable Factory.  public static SearchableFactory getSearchableFactory() {    if(searchableFactory == null) {      searchableFactory = new SearchableFactory();    }    System.out.println("Factory method is used: getSearchableFactory() ");    return searchableFactory;  }}public class DIWithFactoryCheck {
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Publisher Resources

ISBN: 9781788296250Supplemental Content