Using Spring @Value annotation for multiple properties

Question

I'm using @Value annotation to inject properties and now the properties have increased and the constructor is getting really big .Is there a way to handle this problem

@Component
public class Job {

    private String someProperty

    @Autowired
    public Job(@Value("${some.property}") String someProperty,.............){
        this.someProperty = someProperty
    }

Sotirios Delimanolis · Accepted Answer · 2013-12-12 04:30:41Z

3

Just annotate the fields directly.

@Value("${some.property}") 
private String someProperty

You can do any additional processing in a @PostConstruct method.

answered Dec 12, 2013 at 4:30

Sotirios Delimanolis

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1 Comment

Yogendra Over a year ago

writing a unit test is easy If I use constructor . I can do Job job = new Job("fakeSomeProperty");..

storm_buster · Accepted Answer · 2013-12-12 04:40:33Z

1

Why dont you just do this:

@Component public class Job {

@Value("${some.property1}") private String someProperty1
@Value("${some.property2}") private String someProperty2
//...

@Autowired public Job( ){ 


// your someProperty1 is already set
}

answered Dec 12, 2013 at 4:40

storm_buster

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2 Comments

Yogendra Over a year ago

ok so someProperty1 gets initialized when an instance of class is created?

storm_buster Over a year ago

yes, those values will be initialized by Spring at startup of the application. I assume that you will get an instance of this class using @Autowired .

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