public void SetLeft(ExpressionTreeBase left)
{
if (left != null)
{
left.SetParent(this);
}
Left = left;
}
public void AddArgument(ExpressionTreeBase dim)
{
if (dim != null)
{
dim.SetParent(this);
}
Dimensions.Add(dim);
}
public void SetChild(ExpressionTreeBase child)
{
Child = child;
if (Child != null)
{
Child.SetParent(this);
}
}
public void SetMiddle(ExpressionTreeBase child)
{
Middle = child;
if (Middle != null)
{
Child.SetParent(this);
}
}
public void SetParent(ExpressionTreeBase parent)
{
Parent = parent;
Root = parent.Root;
foreach (var item in GetChildren())
{
item.Root = parent.Root;
}
}
private static JoiningType?GetJoiningType(ExpressionTreeBase item)
{
if (item is AndCondition)
{
return(JoiningType.And);
}
else if (item is OrCondition)
{
return(JoiningType.Or);
}
return(null);
}
public void SetChildren(ExpressionTreeBase left, ExpressionTreeBase right)
{
if (left != null)
{
Left.SetParent(this);
}
Left = left;
if (right != null)
{
right.SetParent(this);
}
Right = right;
}
public static void PrintTree(ExpressionTreeBase treeItem, int indent)
{
string add = "";
for (int i = 0; i < indent; i++)
{
add += " ";
}
Console.Out.WriteLine(add + treeItem);
indent++;
if (treeItem is GetExpression)
{
//Console.Out.WriteLine(add + "Types: ");
//foreach (GetTypes current in ((GetExpression)treeItem).Types)
//{
//Console.Out.WriteLine(add + current);
//}
Console.Out.WriteLine(add + "Conditions: ");
}
if (treeItem is MultiNodeTree)
{
foreach (ExpressionTreeBase current in ((MultiNodeTree)treeItem).Children)
{
PrintTree(current, indent);
}
}
else if (treeItem is SingleNodeTree)
{
PrintTree(((SingleNodeTree)treeItem).Child, indent);
}
if (treeItem is ConditionalExpression)
{
if (((ConditionalExpression)treeItem).AdditionalConditions.Count > 0)
{
//Console.Out.WriteLine(add + "Additional Conditions:");
foreach (ConditionalExpression current in ((ConditionalExpression)treeItem).AdditionalConditions)
{
PrintTree(current, indent);
}
}
}
}
private static ExpressionTreeBase ExtractItem(ExpressionTreeBase item, out JoiningType?type, out bool negate, out ConditionalExpression lastParent)
{
lastParent = null;
type = GetJoiningType(item);
if (item is ConditionalExpression && !(item is NotCondition))
{
lastParent = (ConditionalExpression)item;
item = ((ConditionalExpression)item).Child;
}
if (item is NotCondition)
{
negate = true;
item = ((NotCondition)item).Child;
}
else
{
negate = false;
}
return(item);
}
internal static IEnumerable <LogicalItem> Convert(ExpressionTreeBase item)
{
JoiningType? type;
bool negate;
ConditionalExpression lastParent;
ExpressionTreeBase actualItem = ExtractItem(item, out type, out negate, out lastParent);
LogicalItem result;
if (actualItem is SelectorExpression)
{
result = new LogicalSelector((SelectorExpression)actualItem);
}
else if (actualItem is ConditionGroup)
{
result = new LogicalGroup((ConditionGroup)actualItem);
}
else
{
throw new Exception();
}
result.Negated = negate;
result.JoiningType = type ?? JoiningType.And;
yield return(result);
if (lastParent != null)
{
foreach (LogicalItem current in lastParent.AdditionalConditions.SelectMany(x => Convert(x)))
{
yield return(current);
}
}
}
public void SetRight(ExpressionTreeBase right)
{
Right = right;
}
public SelectorExpression(SelectorTypes field, ModifierTypes modifier, ExpressionTreeBase left) : this()
{
NodeType = field;
Modifier = modifier;
SetLeft(left);
}
public void AddSelect(ExpressionTreeBase sel)
{
sel.SetParent(this);
_selects.Add(sel as DimensionExpression);
}
public void AddDimension(ExpressionTreeBase dim)
{
dim.SetParent(this);
_dimensions.Add(dim as DimensionExpression);
}
public void AddChild(ExpressionTreeBase child)
{
_children.Add(child);
child.SetParent(this);
}
public void AddItem(ExpressionTreeBase lit)
{
AddChild(lit);
}