If you annotate any number with @DecimalMin annotation,
then the number must be higher or equal to the specified minimum.
What are the
supported types?
a.
byte,
b.
short,
c.
int,
d.
long,
e.
Byte,
f.
Short,
g.
Integer,
h.
Long,
i.
BigDecimal,
j.
BigInteger,
k.
CharSequence
Note: As per
specification double, float is not supported due to rounding errors. Some
providers may provide some approximative support
Where can I apply
this annotation?
a.
METHOD,
b.
FIELD,
c.
ANNOTATION_TYPE,
d.
CONSTRUCTOR,
e.
PARAMETER,
f.
TYPE_USE
Find the below working application.
package com.sample.model; import javax.validation.constraints.DecimalMin; public class Employee { @DecimalMin(value = "500") private int id; private String name; public Employee(int id, String name) { this.id = id; this.name = name; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } }
Test.java
package com.sample.test; import java.util.Set; import javax.validation.*; import javax.validation.ValidatorFactory; import com.sample.model.Employee; public class Test { private static ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory(); private static Validator validator = validatorFactory.getValidator(); private static void validateBean(Employee emp) { System.out.println("************************************"); Set<ConstraintViolation<Employee>> validationErrors = validator.validate(emp); if (validationErrors.size() == 0) { System.out.println("No validation errors...."); } for (ConstraintViolation<Employee> violation : validationErrors) { System.out.println(violation.getPropertyPath() + "," + violation.getMessage()); } System.out.println(""); } public static void main(String args[]) { Employee emp1 = new Employee(123, "Krishna"); System.out.println("Validation errors on bean emp1"); validateBean(emp1); Employee emp2 = new Employee(23456789, "Siva"); System.out.println("Validation errors on bean emp2"); validateBean(emp2); } }
Output
Validation errors on bean emp1
************************************
id,must be greater than or equal to 500
Validation errors on bean emp2
************************************
No validation errors....
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