|
public TryGetNode ( string key, |
||
| key | string | |
| node | ||
| 리턴 | bool | |
private void Attach(WBooleanExpression expr)
{
var table = _booleanTabRefVisitor.Invoke(expr);
// Only expression who reference one table can be attached
var tableName = table.Count == 1 ? table.First().Key : "";
MatchEdge edge;
MatchNode node;
if (_graph.TryGetEdge(tableName, out edge))
{
if (edge.Predicates == null)
{
edge.Predicates = new List <WBooleanExpression>();
}
edge.Predicates.Add(expr);
}
else if (_graph.TryGetNode(tableName, out node))
{
if (node.Predicates == null)
{
node.Predicates = new List <WBooleanExpression>();
}
node.Predicates.Add(expr);
}
else
{
FailedToAssign.Add(expr);
}
}
private void Attach(WBooleanExpression expr)
{
var table = _bindTableVisitor.Invoke(expr, _columnTableMapping);
MatchEdge edge, revEdge;
MatchNode node;
if (_graph.TryGetEdge(table, out edge))
{
if (edge.Predicates == null)
{
edge.Predicates = new List <WBooleanExpression>();
}
edge.Predicates.Add(expr);
if (_graph.ReversedEdgeDict.TryGetValue(edge.EdgeAlias, out revEdge))
{
if (revEdge.Predicates == null)
{
revEdge.Predicates = new List <WBooleanExpression>();
}
// take care when an edge is using a default alias
var revExpr = ObjectExtensions.Copy(expr);
var compExpr = revExpr as WBooleanComparisonExpression;
if (compExpr != null)
{
var columnExpr = compExpr.FirstExpr as WColumnReferenceExpression ?? compExpr.SecondExpr as WColumnReferenceExpression;
if (columnExpr != null)
{
var column = columnExpr.MultiPartIdentifier.Identifiers;
if (column.Count >= 2)
{
column[column.Count - 2].Value = revEdge.EdgeAlias;
}
}
}
revEdge.Predicates.Add(revExpr);
}
}
else if (_graph.TryGetNode(table, out node))
{
if (node.Predicates == null)
{
node.Predicates = new List <WBooleanExpression>();
}
node.Predicates.Add(expr);
}
}
private void Attach(WBooleanExpression expr)
{
var table = _bindTableVisitor.Invoke(expr, _columnTableMapping);
MatchEdge edge;
MatchNode node;
if (_graph.TryGetEdge(table, out edge))
{
if (edge.Predicates == null)
{
edge.Predicates = new List <WBooleanExpression>();
}
edge.Predicates.Add(expr);
}
else if (_graph.TryGetNode(table, out node))
{
if (node.Predicates == null)
{
node.Predicates = new List <WBooleanExpression>();
}
node.Predicates.Add(expr);
}
}