internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewConnection dbConnection)
{
//
// Parameters:
// #1 <WValueExpression>: Vertex label
// ... <WPropertyExpression>: The initial properties on vertex
// ... <WValueExpression>: The projected field of AddV
WValueExpression labelValue = (WValueExpression)this.Parameters[0];
List <WPropertyExpression> vertexProperties = new List <WPropertyExpression>();
List <string> projectedField = new List <string>();
for (int i = 1; i < this.Parameters.Count; i++)
{
WPropertyExpression addedProperty = this.Parameters[i] as WPropertyExpression;
if (addedProperty != null)
{
vertexProperties.Add(addedProperty);
}
WValueExpression projectedProperty = this.Parameters[i] as WValueExpression;
if (projectedProperty != null)
{
projectedField.Add(projectedProperty.Value);
}
//Debug.Assert(property != null, "[WAddVTableReference.Compile] Vertex property should not be null");
//Debug.Assert(property.Cardinality == GremlinKeyword.PropertyCardinality.List, "[WAddVTableReference.Compile] Vertex property should be append-mode");
//Debug.Assert(property.Value != null);
}
JObject nodeJsonDocument = this.ConstructNodeJsonDocument(labelValue.Value, vertexProperties);
AddVOperator addVOp = new AddVOperator(
context.CurrentExecutionOperator,
dbConnection,
nodeJsonDocument,
projectedField);
context.CurrentExecutionOperator = addVOp;
foreach (string propertyName in projectedField)
{
ColumnGraphType columnGraphType = GraphViewReservedProperties.IsNodeReservedProperty(propertyName)
? GraphViewReservedProperties.ReservedNodePropertiesColumnGraphTypes[propertyName]
: ColumnGraphType.Value;
context.AddField(this.Alias.Value, propertyName, columnGraphType);
}
return(addVOp);
}
internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewConnection dbConnection)
{
//
// Parameters:
// #1 <WValueExpression>: Vertex label
// ... <WPropertyExpression>: The initial properties on vertex
//
WValueExpression labelValue = (WValueExpression)this.Parameters[0];
List <WPropertyExpression> vertexProperties = new List <WPropertyExpression>();
for (int i = 1; i < this.Parameters.Count; i++)
{
WPropertyExpression property = (WPropertyExpression)this.Parameters[i];
Debug.Assert(property != null, "[WAddVTableReference.Compile] Vertex property should not be null");
Debug.Assert(property.Cardinality == GremlinKeyword.PropertyCardinality.list, "[WAddVTableReference.Compile] Vertex property should be append-mode");
Debug.Assert(property.Value != null);
vertexProperties.Add(property);
}
List <string> projectedField;
JObject nodeJsonDocument = ConstructNodeJsonDocument(labelValue.Value, vertexProperties, out projectedField);
AddVOperator addVOp = new AddVOperator(
context.CurrentExecutionOperator,
dbConnection,
nodeJsonDocument,
projectedField);
context.CurrentExecutionOperator = addVOp;
context.AddField(Alias.Value, "id", ColumnGraphType.VertexId);
context.AddField(Alias.Value, "label", ColumnGraphType.Value);
context.AddField(Alias.Value, "_edge", ColumnGraphType.OutAdjacencyList);
context.AddField(Alias.Value, "_reverse_edge", ColumnGraphType.InAdjacencyList);
context.AddField(Alias.Value, "*", ColumnGraphType.VertexObject);
for (var i = GraphViewReservedProperties.ReservedNodeProperties.Count; i < projectedField.Count; i++)
{
context.AddField(Alias.Value, projectedField[i], ColumnGraphType.Value);
}
return(addVOp);
}
internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewConnection dbConnection)
{
List <string> projectedField;
JObject nodeJsonDocument = ConstructNodeJsonDocument(out projectedField);
GraphViewExecutionOperator addVOp = new AddVOperator(context.CurrentExecutionOperator, dbConnection, nodeJsonDocument, projectedField);
context.CurrentExecutionOperator = addVOp;
context.AddField(Alias.Value, "id", ColumnGraphType.VertexId);
context.AddField(Alias.Value, "label", ColumnGraphType.Value);
context.AddField(Alias.Value, "_edge", ColumnGraphType.OutAdjacencyList);
context.AddField(Alias.Value, "_reverse_edge", ColumnGraphType.InAdjacencyList);
context.AddField(Alias.Value, "*", ColumnGraphType.VertexObject);
for (var i = GraphViewReservedProperties.ReservedNodeProperties.Count; i < projectedField.Count; i++)
{
context.AddField(Alias.Value, projectedField[i], ColumnGraphType.Value);
}
return(addVOp);
}
internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewCommand command)
{
//
// Parameters:
// #1 <WValueExpression>: Vertex label
// ... <WPropertyExpression>: The initial properties on vertex
//
WValueExpression labelValue = (WValueExpression)this.Parameters[0];
Debug.Assert(labelValue.Value != null, "[WAddVTableReference.Compile] Vertex label should not be null");
List <PropertyTuple> vertexProperties = new List <PropertyTuple>();
List <string> projectedField = new List <string>(GraphViewReservedProperties.InitialPopulateNodeProperties);
projectedField.Add(GremlinKeyword.Star);
projectedField.Add(GremlinKeyword.Label);
for (int i = 1; i < this.Parameters.Count; i++)
{
WPropertyExpression property = (WPropertyExpression)this.Parameters[i];
Debug.Assert(property != null, "[WAddVTableReference.Compile] Vertex property should not be null");
Debug.Assert(property.Cardinality == GremlinKeyword.PropertyCardinality.List, "[WAddVTableReference.Compile] Vertex property should be append-mode");
Debug.Assert(property.Value != null);
if (!projectedField.Contains(property.Key.Value))
{
projectedField.Add(property.Key.Value);
}
if (property.Value is WValueExpression)
{
WValueExpression value = property.Value as WValueExpression;
Dictionary <string, Tuple <StringField, ScalarSubqueryFunction> > meta = new Dictionary <string, Tuple <StringField, ScalarSubqueryFunction> >();
foreach (KeyValuePair <WValueExpression, WScalarExpression> pair in property.MetaProperties)
{
string name = pair.Key.Value;
if (pair.Value is WValueExpression)
{
WValueExpression metaValue = pair.Value as WValueExpression;
meta.Add(name, new Tuple <StringField, ScalarSubqueryFunction>(metaValue.ToStringField(), null));
}
else
{
WScalarSubquery metaScalarSubquery = pair.Value as WScalarSubquery;
ScalarSubqueryFunction metaValueFunction = (ScalarSubqueryFunction)metaScalarSubquery.CompileToFunction(context, command);
meta.Add(name, new Tuple <StringField, ScalarSubqueryFunction>(null, metaValueFunction));
}
}
PropertyTuple valueProperty = new PropertyTuple(property.Cardinality, property.Key.Value, value.ToStringField(), meta);
vertexProperties.Add(valueProperty);
}
else
{
WScalarSubquery scalarSubquery = property.Value as WScalarSubquery;
ScalarSubqueryFunction valueFunction = (ScalarSubqueryFunction)scalarSubquery.CompileToFunction(context, command);
Dictionary <string, Tuple <StringField, ScalarSubqueryFunction> > meta = new Dictionary <string, Tuple <StringField, ScalarSubqueryFunction> >();
foreach (KeyValuePair <WValueExpression, WScalarExpression> pair in property.MetaProperties)
{
string name = pair.Key.Value;
if (pair.Value is WValueExpression)
{
WValueExpression metaValue = pair.Value as WValueExpression;
meta.Add(name, new Tuple <StringField, ScalarSubqueryFunction>(metaValue.ToStringField(), null));
}
else
{
WScalarSubquery metaScalarSubquery = pair.Value as WScalarSubquery;
ScalarSubqueryFunction metaValueFunction = (ScalarSubqueryFunction)metaScalarSubquery.CompileToFunction(context, command);
meta.Add(name, new Tuple <StringField, ScalarSubqueryFunction>(null, metaValueFunction));
}
}
PropertyTuple valueProperty = new PropertyTuple(property.Cardinality, property.Key.Value, valueFunction, meta);
vertexProperties.Add(valueProperty);
}
}
JObject nodeJsonDocument = ConstructNodeJsonDocument(command, labelValue.Value);
AddVOperator addVOp = new AddVOperator(
context.CurrentExecutionOperator,
command,
nodeJsonDocument,
projectedField,
vertexProperties);
context.CurrentExecutionOperator = addVOp;
for (int i = 0; i < projectedField.Count; i++)
{
string propertyName = projectedField[i];
ColumnGraphType columnGraphType = GraphViewReservedProperties.IsNodeReservedProperty(propertyName)
? GraphViewReservedProperties.ReservedNodePropertiesColumnGraphTypes[propertyName]
: ColumnGraphType.Value;
context.AddField(Alias.Value, propertyName, columnGraphType);
}
// Convert the connection to Hybrid if necessary
if (command.Connection.GraphType != GraphType.GraphAPIOnly)
{
command.Connection.GraphType = GraphType.Hybrid;
}
return(addVOp);
}
