Umbraco-CMS/src/Umbraco.Infrastructure/Persistence/DatabaseAnnotations/ConstraintAttribute.cs

using System;

namespace Umbraco.Cms.Infrastructure.Persistence.DatabaseAnnotations
{
    /// <summary>
    /// Attribute that represents a db constraint
    /// </summary>
    [AttributeUsage(AttributeTargets.Property)]
    public class ConstraintAttribute : Attribute
    {
        /// <summary>
        /// Gets or sets the name of the constraint
        /// </summary>
        /// <remarks>
        /// Overrides the default naming of a property constraint:
        /// DF_tableName_propertyName
        /// </remarks>
        public string Name { get; set; }

        /// <summary>
        /// Gets or sets the Default value
        /// </summary>
        public object Default { get; set; }
    }
}