/// <summary>
/// The constructor for constructing a facet description object
/// </summary>
/// <param name="facetName">The name of this facet</param>
/// <param name="facetType">The type of this facet</param>
/// <param name="minValue">The min value for this facet</param>
/// <param name="maxValue">The max value for this facet</param>
/// <param name="defaultValue">The default value for this facet</param>
/// <exception cref="System.ArgumentNullException">Thrown if either facetName, facetType or applicableType arguments are null</exception>
internal FacetDescription(string facetName,
EdmType facetType,
int?minValue,
int?maxValue,
object defaultValue)
{
EntityUtil.CheckStringArgument(facetName, "facetName");
EntityUtil.GenericCheckArgumentNull(facetType, "facetType");
if (minValue.HasValue || maxValue.HasValue)
{
Debug.Assert(FacetDescription.IsNumericType(facetType), "Min and Max Values can only be specified for numeric facets");
if (minValue.HasValue && maxValue.HasValue)
{
Debug.Assert(minValue != maxValue, "minValue should not be equal to maxValue");
}
}
_facetName = facetName;
_facetType = facetType;
_minValue = minValue;
_maxValue = maxValue;
_defaultValue = defaultValue;
}
private static void UpdateMinMaxValueForConstant(string facetName, EdmType facetType, ref int?minValue, ref int?maxValue, object defaultValue)
{
if (FacetDescription.IsNumericType(facetType))
{
if (facetName == EdmProviderManifest.PrecisionFacetName ||
facetName == EdmProviderManifest.ScaleFacetName)
{
minValue = (int?)((byte?)defaultValue);
maxValue = (int?)((byte?)defaultValue);
}
else
{
minValue = (int?)defaultValue;
maxValue = (int?)defaultValue;
}
}
}
private void Validate(string declaringTypeName)
{
if (_defaultValue == _notInitializedSentinel)
{
if (_isConstant)
{
throw EntityUtil.MissingDefaultValueForConstantFacet(_facetName, declaringTypeName);
}
}
else if (FacetDescription.IsNumericType(_facetType))
{
if (_isConstant)
{
// Either both of them are not specified or both of them have the same value
if ((_minValue.HasValue != _maxValue.HasValue) ||
(_minValue.HasValue && _minValue.Value != _maxValue.Value))
{
throw EntityUtil.MinAndMaxValueMustBeSameForConstantFacet(_facetName, declaringTypeName);
}
}
// If its not constant, then both of the minValue and maxValue must be specified
else if (!_minValue.HasValue || !_maxValue.HasValue)
{
throw EntityUtil.BothMinAndMaxValueMustBeSpecifiedForNonConstantFacet(_facetName, declaringTypeName);
}
else if (_minValue.Value == _maxValue)
{
throw EntityUtil.MinAndMaxValueMustBeDifferentForNonConstantFacet(_facetName, declaringTypeName);
}
else if (_minValue < 0 || _maxValue < 0)
{
throw EntityUtil.MinAndMaxMustBePositive(_facetName, declaringTypeName);
}
else if (_minValue > _maxValue)
{
throw EntityUtil.MinMustBeLessThanMax(_minValue.ToString(), _facetName, declaringTypeName);
}
}
}