public JoinReader(IReference reference)
{
IReferenceMetadata metadata = reference.List ?? reference.Find(ReferenceFlags.Child).Metadata;
this.Metadata = metadata.Identity.Require <IBindingMetadata>();
this.Identity = this.Metadata.Identity;
}
public int GetJoinIndex(IReference reference)
{
IReference childReference = reference.Find(ReferenceFlags.Child);
MetadataIdentity target = childReference.Metadata.Identity;
int parentIndex = this.GetListIndex(reference);
lock (this.state)
{
Dictionary <MetadataIdentity, int> innerMap = this.childMap.GetOrAdd(parentIndex);
return(innerMap.GetOrAdd(target, innerMap.Count));
}
}
public static IReferenceKey FindKey(this IReference reference, ReferenceFlags flag) => reference.Find(flag)?.Key;
private IEnumerable <Type> GetParentKeyType(IReference reference)
{
IReference parentReference = reference.Find(ReferenceFlags.Parent);
return(parentReference.Key.Properties.Select(m => m.Type.GetKeyType()));
}
