Value Object : Value Object should have parametrized constructor

Medium

---

DDD

If you don't have parametrized constructor or equivalent, you have setter. You shouldn't have a setter.

Value Objects are classes annotated with ValueObject.

Examples

Example 1:

Positive

Correct implementation following the practice.

namespace Practices.DDD.ValueObject.ParametrizedConstructor
{
    [ValueObject]
    internal class VODefaultValue
    {
        public VODefaultValue(int myValue, int secondValue = 0)
        {
            MyValue = myValue;
        }

        public int MyValue { get; }
        public int SecondValue { get; }
    }


    
    
    [ValueObject]
     public class ValueObjectWithoutParametrizedConstructor
        {
            public ValueObjectWithoutParametrizedConstructor()
            {
    
            }
    
            public int SomeProperty { get; set; }
        }
}

Negative

Incorrect implementation that violates the practice.

namespace Practices.DDD.ValueObject.ParametrizedConstructor
{
    [ValueObject]
    internal class VODefaultValue
    {
        public VODefaultValue(int myValue, int secondValue = 0)
        {
            MyValue = myValue;
        }

        public int MyValue { get; }
        public int SecondValue { get; }
    }


    
    
    [ValueObject]
     public class ValueObjectWithoutParametrizedConstructor
        {
            public ValueObjectWithoutParametrizedConstructor()
            {
    
            }
    
            public int SomeProperty { get; set; }
        }
}