public override DbExpression Visit(DbRelationshipNavigationExpression expression)
{
EntityUtil.CheckArgumentNull(expression, "expression");
DbExpression result = expression;
RelationshipEndMember newFrom;
RelationshipEndMember newTo;
VisitRelationshipEnds(expression.NavigateFrom, expression.NavigateTo, out newFrom, out newTo);
DbExpression newNavSource = this.VisitExpression(expression.NavigationSource);
if (!object.ReferenceEquals(expression.NavigateFrom, newFrom) ||
!object.ReferenceEquals(expression.NavigateTo, newTo) ||
!object.ReferenceEquals(expression.NavigationSource, newNavSource))
{
result = CqtBuilder.Navigate(newNavSource, newFrom, newTo);
}
NotifyIfChanged(expression, result);
return(result);
}
/// <summary> /// Typed visitor pattern method for DbRelationshipNavigationExpression. /// </summary> /// <param name="expression">The DbRelationshipNavigationExpression that is being visited.</param> /// <returns>An instance of TResultType.</returns> public abstract TResultType Visit(DbRelationshipNavigationExpression expression);
/// <summary>
/// Visitor pattern method for <see cref="DbRelationshipNavigationExpression"/>.
/// </summary>
/// <param name="expression">The DbRelationshipNavigationExpression that is being visited.</param>
/// <exception cref="ArgumentNullException"><paramref name="expression"/> is null</exception>
public override void Visit(DbRelationshipNavigationExpression expression)
{
// #433613: PreSharp warning 56506: Parameter 'expression' to this public method must be validated: A null-dereference can occur here.
VisitExpression(EntityUtil.CheckArgumentNull(expression, "expression").NavigationSource);
}
/// <summary> /// Visitor pattern method for DbRelationshipNavigationExpression. /// </summary> /// <param name="expression">The DbRelationshipNavigationExpression that is being visited.</param> public abstract void Visit(DbRelationshipNavigationExpression expression);
