CODEWITHSUNDEEP
javajavabeansbean-validation
user1428716
user1428716

Reputation: 2136

JSR 303 Bean validation

I have two fields in my bean 

String key,
String value,

When field key="A" , "value" should follow a particular Regex for other "key" - it can be anything.

How would I define this validation on value based on key.

Upvotes: 0

Views: 246

Answers (1)

Khalid
Khalid

Reputation: 2230

You can use class-level constraints.

1- Annotate your bean with class-level custom constraint annotation:

@ValidKeyValue
public class MyBean {
    private String key;
    private String value;
    ...
}

2- Create the custom annotation and its validator.

3- Implement your validation logic in the isValid method:

@Override
public boolean isValid(MyBean myBean, ConstraintValidatorContext context) {
    if ("A".equals(myBean.getKey())) {
        // case 1
    } else {
        // case 2
    }
}

Upvotes: 2

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