public void Explain(SourceBuilder sb, IGraphModel model)
{
SearchPlanNode src = SourceSPNode as SearchPlanNode;
SearchPlanNode tgt = Element as SearchPlanNode;
switch (Type)
{
case SearchOperationType.Outgoing:
sb.AppendFront("from " + src.PatternElement.UnprefixedName + " outgoing -" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "->\n");
break;
case SearchOperationType.Incoming:
sb.AppendFront("from " + src.PatternElement.UnprefixedName + " incoming <-" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "-\n");
break;
case SearchOperationType.Incident:
sb.AppendFront("from " + src.PatternElement.UnprefixedName + " incident <-" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "->\n");
break;
case SearchOperationType.ImplicitSource:
sb.AppendFront("from <-" + src.PatternElement.UnprefixedName + "- get source " + tgt.PatternElement.UnprefixedName + ":" + model.NodeModel.Types[tgt.PatternElement.TypeID].Name + "\n");
break;
case SearchOperationType.ImplicitTarget:
sb.AppendFront("from -" + src.PatternElement.UnprefixedName + "-> get target " + tgt.PatternElement.UnprefixedName + ":" + model.NodeModel.Types[tgt.PatternElement.TypeID].Name + "\n");
break;
case SearchOperationType.Implicit:
sb.AppendFront("from <-" + src.PatternElement.UnprefixedName + "-> get implicit " + tgt.PatternElement.UnprefixedName + ":" + model.NodeModel.Types[tgt.PatternElement.TypeID].Name + "\n");
break;
case SearchOperationType.Lookup:
if (tgt.PatternElement is PatternNode)
{
sb.AppendFront("lookup " + tgt.PatternElement.UnprefixedName + ":" + model.NodeModel.Types[tgt.PatternElement.TypeID].Name + " in graph\n");
}
else
{
sb.AppendFront("lookup -" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "-> in graph\n");
}
break;
case SearchOperationType.ActionPreset:
sb.AppendFront("(preset: " + tgt.PatternElement.UnprefixedName + ")\n");
break;
case SearchOperationType.NegIdptPreset:
sb.AppendFront("(preset: " + tgt.PatternElement.UnprefixedName + (tgt.PatternElement.PresetBecauseOfIndependentInlining ? " after independent inlining" : "") + ")\n");
break;
case SearchOperationType.SubPreset:
sb.AppendFront("(preset: " + tgt.PatternElement.UnprefixedName + ")\n");
break;
case SearchOperationType.Condition:
sb.AppendFront("if { depending on " + String.Join(",", ((PatternCondition)Element).NeededNodes) + ","
+ String.Join(",", ((PatternCondition)Element).NeededEdges) + " }\n");
break;
case SearchOperationType.NegativePattern:
sb.AppendFront("negative {\n");
sb.Indent();
((ScheduledSearchPlan)Element).Explain(sb, model);
sb.Append("\n");
((ScheduledSearchPlan)Element).PatternGraph.ExplainNested(sb, model);
sb.Unindent();
sb.AppendFront("}\n");
break;
case SearchOperationType.IndependentPattern:
sb.AppendFront("independent {\n");
sb.Indent();
((ScheduledSearchPlan)Element).Explain(sb, model);
sb.Append("\n");
((ScheduledSearchPlan)Element).PatternGraph.ExplainNested(sb, model);
sb.Unindent();
sb.AppendFront("}\n");
break;
case SearchOperationType.PickFromStorage:
case SearchOperationType.PickFromStorageDependent:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "{" + Storage.ToString() + "}\n");
break;
case SearchOperationType.MapWithStorage:
case SearchOperationType.MapWithStorageDependent:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "{" + Storage.ToString() + "[" + StorageIndex.ToString() + "]}\n");
break;
case SearchOperationType.PickFromIndex:
case SearchOperationType.PickFromIndexDependent:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "{" + IndexAccess.ToString() + "}\n");
break;
case SearchOperationType.PickByName:
case SearchOperationType.PickByNameDependent:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "{" + NameLookup.ToString() + "}\n");
break;
case SearchOperationType.PickByUnique:
case SearchOperationType.PickByUniqueDependent:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "{" + UniqueLookup.ToString() + "}\n");
break;
case SearchOperationType.Cast:
sb.AppendFront(tgt.PatternElement.UnprefixedName + "<" + src.PatternElement.UnprefixedName + ">\n");
break;
case SearchOperationType.Assign:
sb.AppendFront("(" + tgt.PatternElement.UnprefixedName + " = " + src.PatternElement.UnprefixedName + ")\n");
break;
case SearchOperationType.Identity:
sb.AppendFront("(" + tgt.PatternElement.UnprefixedName + " == " + src.PatternElement.UnprefixedName + ")\n");
break;
case SearchOperationType.AssignVar:
sb.AppendFront("(" + tgt.PatternElement.UnprefixedName + " = expr" + ")\n");
break;
case SearchOperationType.LockLocalElementsForPatternpath:
sb.AppendFront("lock for patternpath\n");
break;
case SearchOperationType.DefToBeYieldedTo:
if (Element is PatternVariable)
{
sb.AppendFront("def " + ((PatternVariable)Element).Name + "\n");
}
else
{
sb.AppendFront("def " + ((SearchPlanNode)Element).PatternElement.Name + "\n");
}
break;
case SearchOperationType.ParallelLookup:
if (tgt.PatternElement is PatternNode)
{
sb.AppendFront("parallelized lookup " + tgt.PatternElement.UnprefixedName + ":" + model.NodeModel.Types[tgt.PatternElement.TypeID].Name + " in graph\n");
}
else
{
sb.AppendFront("parallelized lookup -" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "-> in graph\n");
}
break;
case SearchOperationType.ParallelPickFromStorage:
case SearchOperationType.ParallelPickFromStorageDependent:
sb.AppendFront("parallelized " + tgt.PatternElement.UnprefixedName + "{" + Storage.ToString() + "}\n");
break;
case SearchOperationType.ParallelOutgoing:
sb.AppendFront("parallelized from " + src.PatternElement.UnprefixedName + " outgoing -" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "->\n");
break;
case SearchOperationType.ParallelIncoming:
sb.AppendFront("parallelized from " + src.PatternElement.UnprefixedName + " incoming <-" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "-\n");
break;
case SearchOperationType.ParallelIncident:
sb.AppendFront("parallelized from " + src.PatternElement.UnprefixedName + " incident <-" + tgt.PatternElement.UnprefixedName + ":" + model.EdgeModel.Types[tgt.PatternElement.TypeID].Name + "->\n");
break;
case SearchOperationType.WriteParallelPreset:
case SearchOperationType.ParallelPreset:
case SearchOperationType.WriteParallelPresetVar:
case SearchOperationType.ParallelPresetVar:
case SearchOperationType.SetupParallelLookup:
case SearchOperationType.SetupParallelPickFromStorage:
case SearchOperationType.SetupParallelPickFromStorageDependent:
case SearchOperationType.SetupParallelOutgoing:
case SearchOperationType.SetupParallelIncoming:
case SearchOperationType.SetupParallelIncident:
break; // uninteresting to the user
}
}
