private (IModelGraph, ImmutableDictionary <object, IModelNode>) UpdateNodeCore(
[NotNull] IModelNode updatedNode,
[NotNull] IModelGraph modelGraph,
[NotNull] ImmutableDictionary <object, IModelNode> payloadToModelNodeMap,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
var oldNode = GetNode(updatedNode.Id);
itemEvents.Add(new ModelNodeUpdatedEvent(oldNode, updatedNode));
if (oldNode.Payload != null)
{
payloadToModelNodeMap = payloadToModelNodeMap.Remove(oldNode.Payload);
}
if (updatedNode.Payload != null)
{
payloadToModelNodeMap = payloadToModelNodeMap.Add(updatedNode.Payload, updatedNode);
}
return(
modelGraph.UpdateVertex(updatedNode),
payloadToModelNodeMap
);
}
private static IModelGraph AddRelationshipCore(
[NotNull] IModelRelationship relationship,
[NotNull] IModelGraph modelGraph,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
itemEvents.Add(new ModelRelationshipAddedEvent(relationship));
return(modelGraph.AddEdge(relationship));
}
private static IModelGraph AddNodeCore(
[NotNull] IModelNode newNode,
[NotNull] IModelGraph modelGraph,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
itemEvents.Add(new ModelNodeAddedEvent(newNode));
return(modelGraph.AddVertex(newNode));
}
private IModelGraph RemoveRelationshipCore(
ModelRelationshipId relationshipId,
[NotNull] IModelGraph modelGraph,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
var oldRelationship = GetRelationship(relationshipId);
itemEvents.Add(new ModelRelationshipRemovedEvent(oldRelationship));
return(modelGraph.RemoveEdge(relationshipId));
}
private IModelGraph RemoveNodeCore(
ModelNodeId nodeId,
[NotNull] IModelGraph modelGraph,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
var oldNode = GetNode(nodeId);
itemEvents.Add(new ModelNodeRemovedEvent(oldNode));
return(modelGraph.RemoveVertex(nodeId));
}
private IModel CreateInstance(
IModelGraph graph,
[NotNull] ImmutableDictionary <object, IModelNode> payloadToModelNodeMap,
[NotNull] ImmutableDictionary <object, IModelRelationship> payloadToModelRelationshipMap)
=> new Model(
graph,
payloadToModelNodeMap,
payloadToModelRelationshipMap,
_sequenceProvider,
_modelRuleProviders,
_nodePayloadEqualityComparer,
_relationshipPayloadEqualityComparer);
private static (IModelGraph, ImmutableDictionary <object, IModelRelationship> payloadToModelRelationshipMap) AddRelationshipCore(
[NotNull] IModelRelationship relationship,
[NotNull] IModelGraph modelGraph,
[NotNull] ImmutableDictionary <object, IModelRelationship> payloadToModelRelationshipMap,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
itemEvents.Add(new ModelRelationshipAddedEvent(relationship));
return(
modelGraph.AddEdge(relationship),
relationship.Payload == null
? payloadToModelRelationshipMap
: payloadToModelRelationshipMap.Add(relationship.Payload, relationship)
);
}
private static (IModelGraph, ImmutableDictionary <object, IModelNode>) AddNodeCore(
[NotNull] IModelNode newNode,
[NotNull] IModelGraph modelGraph,
[NotNull] ImmutableDictionary <object, IModelNode> payloadToModelNodeMap,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
itemEvents.Add(new ModelNodeAddedEvent(newNode));
return(
modelGraph.AddVertex(newNode),
newNode.Payload == null
? payloadToModelNodeMap
: payloadToModelNodeMap.Add(newNode.Payload, newNode)
);
}
private (IModelGraph, ImmutableDictionary <object, IModelRelationship>) RemoveRelationshipCore(
ModelRelationshipId relationshipId,
[NotNull] IModelGraph modelGraph,
[NotNull] ImmutableDictionary <object, IModelRelationship> payloadToModelRelationshipMap,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
var oldRelationship = GetRelationship(relationshipId);
itemEvents.Add(new ModelRelationshipRemovedEvent(oldRelationship));
return(
modelGraph.RemoveEdge(relationshipId),
oldRelationship.Payload == null
? payloadToModelRelationshipMap
: payloadToModelRelationshipMap.Remove(oldRelationship.Payload)
);
}
private (IModelGraph, ImmutableDictionary <object, IModelNode>) RemoveNodeCore(
ModelNodeId nodeId,
[NotNull] IModelGraph modelGraph,
[NotNull] ImmutableDictionary <object, IModelNode> payloadToModelNodeMap,
[NotNull][ItemNotNull] ICollection <ModelItemEventBase> itemEvents)
{
var oldNode = GetNode(nodeId);
itemEvents.Add(new ModelNodeRemovedEvent(oldNode));
return(
modelGraph.RemoveVertex(nodeId),
oldNode.Payload == null
? payloadToModelNodeMap
: payloadToModelNodeMap.Remove(oldNode.Payload)
);
}
private Model(
IModelGraph graph,
[NotNull] ImmutableDictionary <object, IModelNode> payloadToModelNodeMap,
[NotNull] ImmutableDictionary <object, IModelRelationship> payloadToModelRelationshipMap,
[NotNull] ISequenceProvider sequenceProvider,
[CanBeNull] IEnumerable <IModelRuleProvider> modelRuleProviders,
[CanBeNull] IEqualityComparer <object> nodePayloadEqualityComparer,
[CanBeNull] IEqualityComparer <object> relationshipPayloadEqualityComparer)
{
_graph = graph;
_payloadToModelNodeMap = payloadToModelNodeMap;
_payloadToModelRelationshipMap = payloadToModelRelationshipMap;
_sequenceProvider = sequenceProvider;
_modelRuleProviders = modelRuleProviders;
_nodePayloadEqualityComparer = nodePayloadEqualityComparer;
_relationshipPayloadEqualityComparer = relationshipPayloadEqualityComparer;
}
private static IModel CreateInstance(IModelGraph graph) => new Model(graph);
private Model(IModelGraph graph)
{
_graph = graph;
}
private Model(IModelGraph graph, [NotNull] params IModelRuleProvider[] modelRuleProviders)
{
_graph = graph;
_modelRuleProviders = modelRuleProviders;
}
private IModel CreateInstance(IModelGraph graph) => new Model(graph, _modelRuleProviders);