This is a demonstrator of cluster pattern for NO MVC and Entity Framework. It shows a 1:m collection, using summary object.

• Customer cluster
  • Customer
  • BusinessEngagementSummary
    • subtypes, for Claim and for SafeRegistration
  • IBusinessEngagement
• Claim cluster
  • Claim (implements IBusinessEngagement)
• Registrations cluster
  • SafeRegistration (implements IBusinessEngagement)

• The ClaimFactory is used to create a Claim; it also posts an summary of the Claim to the Customers cluster (in BusinessEngagementSummary). Part of this includes the InstanceIdentifier that is used to look up the claim from the summary.

• The subtype tables allow the DBA to set foreign key references between the clusters

• When creating a Claim, the DOM business logic code has to figure out the next Id; this is because the SQL insert doesn't done til the end of the action

• The (framework-provided) ObjectFinder is used to polymorphically look up the related IBusinessEngagement from the BusinessEngagementSummary.