public EntityDescriptor(
string name,
int position,
EntityLength length,
DataEntityFormat valueFormat)
: this(name, position, length, valueFormat, valueFormat.GetDefaultValidator())
{
}
public EntityDescriptor(
string name,
int position,
EntityLength length,
DataEntityFormat valueFormat,
Func <object, bool> valueRangeValidator)
{
Name = name ?? throw new ArgumentNullException(nameof(name));
Position = position;
Length = length;
ValueFormat = valueFormat;
ValidateValueRange = valueRangeValidator ?? throw new ArgumentNullException(nameof(valueRangeValidator));
var defaultValue = valueFormat.GetAttribute <DefaultEntityValueAttribute>().Value;
DefaultEntity = new DataEntity(defaultValue, this);
}