| public AddRoot ( ExpressionType type, object item ) : void | ||
| type | ExpressionType | The node type. |
| item | object | The item to add to the node. |
| return | void | |
public static ExpressionTree AssociateTrees(ExpressionTree a, ExpressionTree b, FilterImplication implication)
{
// check the parameters
Debug.Assert(a != null && b != null, "Null parameters");
ExpressionTree result = new ExpressionTree();
result.AddRoot(ExpressionType.Implication, implication);
result.Root.Left = a.Root;
result.Root.Right = b.Root;
return result;
}
public static ExpressionTree AssociateTreeWithFilter(ExpressionTree tree, FilterBase filter,
FilterImplication implication, TreeDirection treeDirection)
{
// check the parameters
Debug.Assert(tree != null && filter != null, "Null parameters");
ExpressionTree result = new ExpressionTree();
if(treeDirection == TreeDirection.Left) {
result.AddRoot(ExpressionType.Implication, implication);
result.Root.Left = tree.Root;
result.AddNode(result.Root, TreeDirection.Right, ExpressionType.Filter, filter);
}
else {
result.AddRoot(ExpressionType.Implication, implication);
result.Root.Right = tree.Root;
result.AddNode(result.Root, TreeDirection.Left, ExpressionType.Filter, filter);
}
return result;
}
public static ExpressionTree AssociateFilters(FilterBase a, FilterBase b,
FilterImplication implication)
{
// check the parameters
Debug.Assert(a != null && b != null, "Null parameters");
ExpressionTree result = new ExpressionTree();
result.AddRoot(ExpressionType.Implication, implication);
result.AddNode(result.Root, TreeDirection.Left, ExpressionType.Filter, a);
result.AddNode(result.Root, TreeDirection.Right, ExpressionType.Filter, b);
return result;
}