Validation samples

Validate a java bean has never been so simple. The library offers different API related to this, following some examples:

Validate a Java Bean:

Given the following bean:

public class SampleBean {                           
   @NotNull                   
   private BigInteger id;                      
   private String name;                 
   
   // constructor
   // getters and setters... 
}

an instance of the above object:

SampleBean sampleBean = new SampleBean();

And one line code as:

beanUtils.getValidator().validate(sampleBean);

this will throw an InvalidBeanException as the id field is null.

Retrieve the violated constraints:

Given the following bean:

public class SampleBean {                           
   @NotNull                   
   private BigInteger id;                      
   private String name;                 
   
   // constructor
   // getters and setters... 
}

an instance of the above object:

SampleBean sampleBean = new SampleBean();

And one line code as:

List<String> violatedConstraints = beanUtils.getValidator().getConstraintViolationsMessages(sampleBean);

this will returns a list containing a constraint validation message for the id field as it's null and the constraint: @NotNull is not met.

in case it's needed to have the ConstraintViolation object:

Set<ConstraintViolation<Object>> violatedConstraints = beanUtils.getValidator().getConstraintViolations(sampleBean);