ValueObject.cs
1.81 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Pole.Domain
{
public abstract class ValueObject
{
protected static bool EqualOperator(ValueObject left, ValueObject right)
{
if (left is null ^ right is null)
{
return false;
}
return left is null || left.Equals(right);
}
protected static bool NotEqualOperator(ValueObject left, ValueObject right)
{
return !(EqualOperator(left, right));
}
protected abstract IEnumerable<object> GetAtomicValues();
public override bool Equals(object obj)
{
if (obj == null || obj.GetType() != GetType())
{
return false;
}
ValueObject other = (ValueObject)obj;
IEnumerator<object> thisValues = GetAtomicValues().GetEnumerator();
IEnumerator<object> otherValues = other.GetAtomicValues().GetEnumerator();
while (thisValues.MoveNext() && otherValues.MoveNext())
{
if (thisValues.Current is null ^ otherValues.Current is null)
{
return false;
}
if (thisValues.Current != null && !thisValues.Current.Equals(otherValues.Current))
{
return false;
}
}
return !thisValues.MoveNext() && !otherValues.MoveNext();
}
public override int GetHashCode()
{
return GetAtomicValues()
.Select(x => x != null ? x.GetHashCode() : 0)
.Aggregate((x, y) => x ^ y);
}
public ValueObject GetCopy()
{
return this.MemberwiseClone() as ValueObject;
}
}
}