/// <summary>
/// Initializes a new instance of the <see cref="LogicalJoinModel"/>.
/// </summary>
/// <param name="logicalOperator">Logical operator.</param>
/// <param name="first">First operand.</param>
/// <param name="second">Second operand.</param>
/// <exception cref="ArgumentNullException"><paramref name="first"/> or <paramref name="second"/> is null.</exception>
public LogicalJoinModel(LogicalJoinOperator logicalOperator, [NotNull] WhereModel first,
[NotNull] WhereModel second)
: base(WhereType.LogicalJoin)
{
Guard.CheckNotNull(nameof(first), first);
Guard.CheckNotNull(nameof(second), second);
LogicalOperator = logicalOperator;
First = first;
Second = second;
}
private XElement Where(LogicalJoinOperator logicalJoinOperator, [NotNull] XElement xFirst,
[NotNull] XElement xSecond)
{
return(new XElement(logicalJoinOperator.ToString(), xFirst, xSecond));
}