/// <summary>
/// Determines if item is equal to Value.
/// </summary>
/// <param name="data">
/// The data to compare against.
/// </param>
/// <returns>
/// Returns true if data is equal to Value.
/// </returns>
protected override bool Evaluate(T data)
{
Debug.Assert(this.IsValid);
int result = CustomTypeComparer.Compare <T>(this.Value.GetCastValue(), data);
return(0 == result);
}
/// <summary>
/// Determines if item is less than Value.
/// </summary>
/// <param name="item">
/// The data to compare against.
/// </param>
/// <returns>
/// Returns true if data is less than Value.
/// </returns>
protected override bool Evaluate(T item)
{
Debug.Assert(this.IsValid, "is valid");
int result = CustomTypeComparer.Compare <T>(this.Value.GetCastValue(), item);
return(result >= 0);
}
/// <summary>
/// Evaluates data and determines if it is between
/// StartValue and EndValue.
/// </summary>
/// <param name="data">
/// The data to evaluate.
/// </param>
/// <returns>
/// Returns true if data is between StartValue and EndValue,
/// false otherwise.
/// </returns>
protected override bool Evaluate(T data)
{
Debug.Assert(this.IsValid, "is valid");
int startValueComparedToData = CustomTypeComparer.Compare <T>(this.StartValue.GetCastValue(), data);
int endValueComparedToData = CustomTypeComparer.Compare <T>(this.EndValue.GetCastValue(), data);
bool isBetweenForward = startValueComparedToData < 0 && endValueComparedToData > 0;
bool isBetweenBackwards = endValueComparedToData < 0 && startValueComparedToData > 0;
return(isBetweenForward || isBetweenBackwards);
}
