/// <summary>
/// Ctor.
/// </summary>
/// <param name="type">is the type of outer join</param>
/// <param name="left">is a property providing joined-on values</param>
/// <param name="right">is a property providing joined-on values</param>
public OuterJoinQualifier(OuterJoinType type, PropertyValueExpression left, PropertyValueExpression right)
: this(type, left, right, new List <PropertyValueExpressionPair>())
{
}
/// <summary>Ctor. </summary>
/// <param name="left">expression</param>
/// <param name="right">expression</param>
public PropertyValueExpressionPair(PropertyValueExpression left, PropertyValueExpression right)
{
Left = left;
Right = right;
}