internal void HasLabel(GremlinVariable lastVariable, List <object> values)
{
List <WBooleanExpression> booleanExprList = new List <WBooleanExpression>();
foreach (var value in values)
{
WScalarExpression firstExpr = lastVariable.GetVariableProperty(GremlinKeyword.Label).ToScalarExpression();
WScalarExpression secondExpr = SqlUtil.GetValueExpr(value);
booleanExprList.Add(SqlUtil.GetEqualBooleanComparisonExpr(firstExpr, secondExpr));
}
WBooleanExpression concatSql = SqlUtil.ConcatBooleanExprWithOr(booleanExprList);
AddPredicate(SqlUtil.GetBooleanParenthesisExpr(concatSql));
}
internal WBooleanExpression ToSqlBoolean()
{
if (TableReferences.Count == 0)
{
if (Predicates != null)
{
return(SqlUtil.GetBooleanParenthesisExpr(Predicates));
}
return(null);
}
else
{
return(SqlUtil.GetExistPredicate(ToSelectQueryBlock()));
}
}
internal void AddLabelPredicateForEdge(GremlinEdgeTableVariable edgeTable, List <string> edgeLabels)
{
if (edgeLabels.Count == 0)
{
return;
}
List <WBooleanExpression> booleanExprList = new List <WBooleanExpression>();
foreach (var edgeLabel in edgeLabels)
{
var firstExpr = edgeTable.GetVariableProperty(GremlinKeyword.Label).ToScalarExpression();
var secondExpr = SqlUtil.GetValueExpr(edgeLabel);
booleanExprList.Add(SqlUtil.GetEqualBooleanComparisonExpr(firstExpr, secondExpr));
}
AddPredicate(SqlUtil.GetBooleanParenthesisExpr(SqlUtil.ConcatBooleanExprWithOr(booleanExprList)));
}
