/// <summary>
/// Returns true if the expression is a DbPropertyExpression (i.e. a class property that has been mapped
/// to a database column) and the type is a Nullable type.
/// </summary>
/// <param name="expression"></param>
/// <returns></returns>
private static bool IsNullableExpressionOfType <T>(DbExpression expression)
where T : DbExpression
{
if (expression == null)
{
return(false);
}
if (!typeof(T).IsAssignableFrom(expression.GetType()))
{
return(false);
}
return(expression.ResultType.Facets.Any(f => f.Name == "Nullable" && ((bool)f.Value)));
}
private void Begin(DbExpression expr, Dictionary <string, object> attrs)
{
attrs.Add("DbExpressionKind", Enum.GetName(typeof(DbExpressionKind), expr.ExpressionKind));
Begin(expr.GetType().Name, attrs);
Dump(expr.ResultType, "ResultType");
}
public override void Visit(DbExpression e)
{
throw EntityUtil.NotSupported(System.Data.Entity.Strings.Cqt_General_UnsupportedExpression(e.GetType().FullName));
}
public override void Visit(DbExpression e)
{
throw new NotSupportedException(Strings.Cqt_General_UnsupportedExpression(e.GetType().FullName));
}
public override TreeNode Visit(DbExpression e)
{
Check.NotNull <DbExpression>(e, nameof(e));
throw new NotSupportedException(Strings.Cqt_General_UnsupportedExpression((object)e.GetType().FullName));
}
public override void Visit(DbExpression e)
{
Check.NotNull(e, "e");
throw new NotSupportedException(Strings.Cqt_General_UnsupportedExpression(e.GetType().FullName));
}
private void End(DbExpression expr)
{
End(expr.GetType().Name);
}
/// <summary>
/// Called when an <see cref="DbExpression" /> of an otherwise unrecognized type is encountered.
/// </summary>
/// <param name="expression"> The expression </param>
/// <returns> </returns>
/// <exception cref="NotSupportedException">
/// Always thrown if this method is called, since it indicates that
/// <paramref name="expression" />
/// is of an unsupported type
/// </exception>
public override bool Visit(DbExpression expression)
{
Check.NotNull(expression, "expression");
throw new NotSupportedException(Strings.Cqt_General_UnsupportedExpression(expression.GetType().FullName));
}
public override void Visit(DbExpression e)
{
throw EntityUtil.NotSupported(System.Data.Entity.Strings.Cqt_General_UnsupportedExpression(e.GetType().FullName));
}
private void Begin(DbExpression expr, Dictionary<string, object> attrs)
{
attrs.Add("DbExpressionKind", Enum.GetName(typeof(DbExpressionKind), expr.ExpressionKind));
Begin(expr.GetType().Name, attrs);
Dump(expr.ResultType, "ResultType");
}
private void WriteRawExpression(DbExpression expression)
{
WriteLine("RAW: " + expression.GetType().Name);
}
private void Write(DbExpression expression)
{
WriteLine(string.Format("{0} ({1}) : {2}", expression.ExpressionKind, expression.GetType().Name, expression.ResultType));
}
public override void Visit(DbExpression expression)
{
EntityUtils.CheckArgumentNull <DbExpression>(expression, nameof(expression));
throw new NotSupportedException(EFProviderSettings.Instance.GetErrorMessage(-1703, "Oracle Data Provider for .NET", expression.GetType().FullName));
}
private void End(DbExpression expr)
{
End(expr.GetType().Name);
}
/// <summary>
/// Called when an <see cref="DbExpression"/> of an otherwise unrecognized type is encountered.
/// </summary>
/// <param name="expression">The expression</param>
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
/// <exception cref="NotSupportedException">Always thrown if this method is called, since it indicates that <paramref name="expression"/> is of an unsupported type</exception>
public override void Visit(DbExpression expression)
{
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
EntityUtil.CheckArgumentNull(expression, "expression");
throw EntityUtil.NotSupported(System.Data.Entity.Strings.Cqt_General_UnsupportedExpression(expression.GetType().FullName));
}
public override bool Visit(DbExpression expression)
{
throw new NotSupportedException(expression.GetType().FullName);
}
/// <summary>
/// Called when an <see cref="DbExpression" /> of an otherwise unrecognized type is encountered.
/// </summary>
/// <param name="expression"> The expression </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="expression" />
/// is null
/// </exception>
/// <exception cref="NotSupportedException">
/// Always thrown if this method is called, since it indicates that
/// <paramref name="expression" />
/// is of an unsupported type
/// </exception>
public override void Visit(DbExpression expression)
{
Check.NotNull(expression, "expression");
throw new NotSupportedException(Strings.Cqt_General_UnsupportedExpression(expression.GetType().FullName));
}