internal override GremlinToSqlContext GetContext()
{
GremlinToSqlContext inputContext = GetInputContext();
FromVertexTraversal?.GetStartOp().InheritedVariableFromParent(inputContext);
GremlinToSqlContext fromVertexContext = FromVertexTraversal?.GetEndOp().GetContext();
ToVertexTraversal?.GetStartOp().InheritedVariableFromParent(inputContext);
GremlinToSqlContext toVertexContext = ToVertexTraversal?.GetEndOp().GetContext();
List <GremlinProperty> edgeProperties = new List <GremlinProperty>();
edgeProperties.AddRange(EdgePropertyOps.Select(propertyOp => propertyOp.ToGremlinProperty(inputContext)));
if (inputContext.PivotVariable == null)
{
if (fromVertexContext == null || toVertexContext == null)
{
throw new SyntaxErrorException("The PivotVariable of addE()-step and fromTraversal( or toTraversal) can't be null at the same time.");
}
GremlinAddETableVariable newTableVariable = new GremlinAddETableVariable(null, EdgeLabel, edgeProperties, fromVertexContext, toVertexContext, true);
inputContext.VariableList.Add(newTableVariable);
inputContext.TableReferencesInFromClause.Add(newTableVariable);
inputContext.SetPivotVariable(newTableVariable);
}
else
{
inputContext.PivotVariable.AddE(inputContext, EdgeLabel, edgeProperties, fromVertexContext, toVertexContext);
}
return(inputContext);
}
internal override GremlinToSqlContext GetContext()
{
GremlinToSqlContext inputContext = GetInputContext();
if (inputContext.PivotVariable == null)
{
throw new QueryCompilationException("AddE should follow by a Vertex");
}
FromVertexTraversal?.GetStartOp().InheritedVariableFromParent(inputContext);
GremlinToSqlContext fromVertexContext = FromVertexTraversal?.GetEndOp().GetContext();
ToVertexTraversal?.GetStartOp().InheritedVariableFromParent(inputContext);
GremlinToSqlContext toVertexContext = ToVertexTraversal?.GetEndOp().GetContext();
inputContext.PivotVariable.AddE(inputContext, EdgeLabel, EdgeProperties, fromVertexContext, toVertexContext);
return(inputContext);
}
