Beispiel #1
0
        private void RetrieveResultMarkup(PropagatorResult source)
        {
            Debug.Assert(null != source);

            if (source.Identifier != PropagatorResult.NullIdentifier)
            {
                // state entries travel with identifiers. several state entries may be merged
                // into a single identifier result via joins in the update mapping view
                do
                {
                    if (null != source.StateEntry)
                    {
                        m_stateEntries.Add(source.StateEntry);
                        if (source.Identifier != PropagatorResult.NullIdentifier)
                        {
                            // if this is an identifier, it may also be registered with an "owner".
                            // Return the owner as well if the owner is also mapped to this table.
                            PropagatorResult owner;
                            if (m_translator.KeyManager.TryGetIdentifierOwner(source.Identifier, out owner) &&
                                null != owner.StateEntry &&
                                ExtentInScope(owner.StateEntry.EntitySet))
                            {
                                m_stateEntries.Add(owner.StateEntry);
                            }

                            // Check if are any referential constraints. If so, the entity key
                            // implies that the dependent relationship instance is also being
                            // handled in this result.
                            foreach (IEntityStateEntry stateEntry in m_translator.KeyManager.GetDependentStateEntries(source.Identifier))
                            {
                                m_stateEntries.Add(stateEntry);
                            }
                        }
                    }
                    source = source.Next;
                }while (null != source);
            }
            else if (!source.IsSimple && !source.IsNull)
            {
                // walk children
                foreach (PropagatorResult child in source.GetMemberValues())
                {
                    RetrieveResultMarkup(child);
                }
            }
        }
 private void AddReferencedEntities(UpdateTranslator translator, PropagatorResult result, KeyToListMap <EntityKey, UpdateCommand> referencedEntities)
 {
     foreach (PropagatorResult property in result.GetMemberValues())
     {
         if (property.IsSimple && property.Identifier != PropagatorResult.NullIdentifier &&
             (PropagatorFlags.ForeignKey == (property.PropagatorFlags & PropagatorFlags.ForeignKey)))
         {
             foreach (int principal in translator.KeyManager.GetDirectReferences(property.Identifier))
             {
                 PropagatorResult owner;
                 if (translator.KeyManager.TryGetIdentifierOwner(principal, out owner) &&
                     null != owner.StateEntry)
                 {
                     Debug.Assert(!owner.StateEntry.IsRelationship, "owner must not be a relationship");
                     referencedEntities.Add(owner.StateEntry.EntityKey, this);
                 }
             }
         }
     }
 }
        private void RetrieveResultMarkup(PropagatorResult source)
        {
            Debug.Assert(null != source);

            if (source.Identifier
                != PropagatorResult.NullIdentifier)
            {
                // state entries travel with identifiers. several state entries may be merged
                // into a single identifier result via joins in the update mapping view
                do
                {
                    if (null != source.StateEntry)
                    {
                        m_stateEntries.Add(source.StateEntry);
                        if (source.Identifier
                            != PropagatorResult.NullIdentifier)
                        {
                            // if this is an identifier, it may also be registered with an "owner".
                            // Return the owner as well if the owner is also mapped to this table.
                            PropagatorResult owner;
                            if (m_translator.KeyManager.TryGetIdentifierOwner(source.Identifier, out owner) &&
                                null != owner.StateEntry
                                &&
                                ExtentInScope(owner.StateEntry.EntitySet))
                            {
                                m_stateEntries.Add(owner.StateEntry);
                            }

                            // Check if are any referential constraints. If so, the entity key
                            // implies that the dependent relationship instance is also being
                            // handled in this result.
                            foreach (var stateEntry in m_translator.KeyManager.GetDependentStateEntries(source.Identifier))
                            {
                                m_stateEntries.Add(stateEntry);
                            }
                        }
                    }
                    source = source.Next;
                }
                while (null != source);
            }
            else if (!source.IsSimple
                     && !source.IsNull)
            {
                // walk children
                foreach (var child in source.GetMemberValues())
                {
                    RetrieveResultMarkup(child);
                }
            }
        }