internal override void OutE(GremlinToSqlContext currentContext, List <string> edgeLabels)
{
GremlinFreeEdgeTableVariable outEdgeTableVar = new GremlinFreeEdgeTableVariable(WEdgeType.OutEdge);
currentContext.VariableList.Add(outEdgeTableVar);
currentContext.AddLabelPredicateForEdge(outEdgeTableVar, edgeLabels);
currentContext.AddPath(new GremlinMatchPath(this, outEdgeTableVar, null));
currentContext.SetPivotVariable(outEdgeTableVar);
}
internal override void InE(GremlinToSqlContext currentContext, List <string> edgeLabels)
{
GremlinFreeEdgeTableVariable inEdgeTable = new GremlinFreeEdgeTableVariable(WEdgeType.InEdge);
currentContext.VariableList.Add(inEdgeTable);
currentContext.AddLabelPredicateForEdge(inEdgeTable, edgeLabels);
currentContext.AddPath(new GremlinMatchPath(null, inEdgeTable, this));
currentContext.SetPivotVariable(inEdgeTable);
}
internal override void Out(GremlinToSqlContext currentContext, List <string> edgeLabels)
{
GremlinFreeEdgeTableVariable outEdgeTable = new GremlinFreeEdgeTableVariable(WEdgeType.OutEdge);
currentContext.VariableList.Add(outEdgeTable);
currentContext.AddLabelPredicateForEdge(outEdgeTable, edgeLabels);
GremlinFreeVertexVariable inVertex = new GremlinFreeVertexVariable();
currentContext.VariableList.Add(inVertex);
currentContext.TableReferences.Add(inVertex);
currentContext.AddPath(new GremlinMatchPath(this, outEdgeTable, inVertex));
currentContext.SetPivotVariable(inVertex);
}
internal override void Both(GremlinToSqlContext currentContext, List <string> edgeLabels)
{
GremlinFreeEdgeTableVariable bothEdgeTable = new GremlinFreeEdgeTableVariable(WEdgeType.BothEdge);
currentContext.VariableList.Add(bothEdgeTable);
currentContext.AddLabelPredicateForEdge(bothEdgeTable, edgeLabels);
GremlinFreeVertexVariable bothVertex = new GremlinFreeVertexVariable();
currentContext.VariableList.Add(bothVertex);
// In this case, the both-edgeTable variable is not added to the table-reference list.
// Instead, we populate a path this_variable-[bothEdgeTable]->bothVertex in the context
currentContext.TableReferences.Add(bothVertex);
currentContext.AddPath(new GremlinMatchPath(this, bothEdgeTable, bothVertex));
currentContext.SetPivotVariable(bothVertex);
}
