///-------------------------------------------------------------------------------------------------
/// <summary>
/// Enumerates handle in this collection.
/// </summary>
/// <param name="domainModel">
/// The domain model.
/// </param>
/// <param name="event">
/// The event.
/// </param>
/// <returns>
/// An enumerator that allows foreach to be used to process handle in this collection.
/// </returns>
///-------------------------------------------------------------------------------------------------
public IEnumerable <IDomainCommand> Handle(IDomainModel domainModel, AddSchemaPropertyEvent @event)
{
Contract.Requires(domainModel, "domainModel");
Contract.Requires(@event, "@event");
var metadata = domainModel.Store.GetSchemaEntity(@event.SchemaId);
if (domainModel.GetElement(@event.Id) == null)
{
yield return(new AddSchemaPropertyCommand(domainModel as ISchema, @event.Id, metadata));
}
}
///-------------------------------------------------------------------------------------------------
/// <summary>
/// Enumerates handle in this collection.
/// </summary>
/// <param name="domainModel">
/// The domain model.
/// </param>
/// <param name="event">
/// The event.
/// </param>
/// <returns>
/// An enumerator that allows foreach to be used to process handle in this collection.
/// </returns>
///-------------------------------------------------------------------------------------------------
public IEnumerable <IDomainCommand> Handle(IDomainModel domainModel, ChangePropertyValueEvent @event)
{
Contract.Requires(domainModel, "domainModel");
Contract.Requires(@event, "@event");
var mel = domainModel.GetElement(@event.Id);
if (mel == null)
{
yield break;
}
var metadata = domainModel.Store.GetSchemaEntity(@event.SchemaId);
var prop = metadata.GetProperty(@event.PropertyName);
if (prop != null)
{
yield return(new ChangePropertyValueCommand(mel, prop, prop.Deserialize(new SerializationContext(prop, @event.Value)), @event.Version));
}
}
///-------------------------------------------------------------------------------------------------
/// <summary>
/// Enumerates handle in this collection.
/// </summary>
/// <exception cref="InvalidElementException">
/// Thrown when an Invalid Element error condition occurs.
/// </exception>
/// <param name="domainModel">
/// The domain model.
/// </param>
/// <param name="event">
/// The event.
/// </param>
/// <returns>
/// An enumerator that allows foreach to be used to process handle in this collection.
/// </returns>
///-------------------------------------------------------------------------------------------------
public IEnumerable <IDomainCommand> Handle(IDomainModel domainModel, AddRelationshipEvent @event)
{
Contract.Requires(domainModel, "domainModel");
Contract.Requires(@event, "@event");
var start = domainModel.GetElement(@event.StartId);
if (start == null)
{
throw new InvalidElementException(@event.StartId);
}
var end = domainModel.Store.GetElement(@event.EndId);
if (end == null)
{
throw new InvalidElementException(@event.EndId);
}
var metadata = domainModel.Store.GetSchemaRelationship(@event.SchemaId);
yield return(new AddRelationshipCommand(metadata, start, end, @event.Id));
}
///-------------------------------------------------------------------------------------------------
/// <summary>
/// An IDomainModel extension method that creates a relationship.
/// </summary>
/// <exception cref="SessionRequiredException">
/// Thrown when a Session Required error condition occurs.
/// </exception>
/// <param name="domain">
/// the domain model.
/// </param>
/// <param name="schema">
/// The schema.
/// </param>
/// <param name="startId">
/// The start identifier.
/// </param>
/// <param name="endId">
/// The end identifier.
/// </param>
/// <param name="id">
/// (Optional) the identifier.
/// </param>
/// <returns>
/// The new relationship.
/// </returns>
///-------------------------------------------------------------------------------------------------
public static IModelRelationship CreateRelationship(this IDomainModel domain, ISchemaRelationship schema, Identity startId, Identity endId, Identity id = null)
{
Contract.Requires(domain != null, "domain");
Contract.Requires(schema != null, "schema");
Contract.Requires(startId != null, "startId");
Contract.Requires(endId != null, "endId");
if (Session.Current == null)
{
throw new SessionRequiredException();
}
var start = domain.GetElement(startId);
if (start == null)
{
throw new InvalidElementException(startId);
}
var cmd = new AddRelationshipCommand(schema, start, endId, id);
Session.Current.Execute(cmd);
return(cmd.Relationship);
}