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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

Auto-wiring by constructor

This mode is identical to autowire by type. The only difference is, in this case, the autowire happens to constructor arguments rather than properties of the bean. When Spring encounters autowire with constructor mode, it will try to search and bind the bean's constructor argument with exactly one bean of the same type. Let's understand this by looking at the following example:

public class StudentService {  public void getStudentDetail() {    System.out.println(" This is Student details.. ");  }}public class ExamService {  private StudentService studentService;  private String examServiceType;    public ExamService(StudentService studentService, String examServiceType) {    this.studentService=studentService; this.examServiceType ...
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Publisher Resources

ISBN: 9781788296250Supplemental Content