コード例 #1
0
        private PropagatorResult CreateSimpleResult(
            IEntityStateEntry stateEntry,
            IExtendedDataRecord record,
            ExtractorMetadata.MemberInformation memberInformation,
            int identifier,
            bool isModified,
            int recordOrdinal,
            object value)
        {
            CurrentValueRecord record1 = record as CurrentValueRecord;
            PropagatorFlags    flags   = memberInformation.Flags;

            if (!isModified)
            {
                flags |= PropagatorFlags.Preserve;
            }
            if (-1 != identifier)
            {
                PropagatorResult owner = !memberInformation.IsServerGenerated && !memberInformation.IsForeignKeyMember || record1 == null?PropagatorResult.CreateKeyValue(flags, value, stateEntry, identifier) : PropagatorResult.CreateServerGenKeyValue(flags, value, stateEntry, identifier, recordOrdinal);

                this.m_translator.KeyManager.RegisterIdentifierOwner(owner);
                return(owner);
            }
            if ((memberInformation.IsServerGenerated || memberInformation.IsForeignKeyMember) && record1 != null)
            {
                return(PropagatorResult.CreateServerGenSimpleValue(flags, value, record1, recordOrdinal));
            }
            return(PropagatorResult.CreateSimpleValue(flags, value));
        }
コード例 #2
0
        private PropagatorResult CreateEntityKeyResult(
            IEntityStateEntry stateEntry,
            EntityKey entityKey)
        {
            RowType           keyRowType        = entityKey.GetEntitySet(this.m_translator.MetadataWorkspace).ElementType.GetKeyRowType();
            ExtractorMetadata extractorMetadata = this.m_translator.GetExtractorMetadata(stateEntry.EntitySet, (StructuralType)keyRowType);

            PropagatorResult[] values = new PropagatorResult[keyRowType.Properties.Count];
            for (int memberOffset = 0; memberOffset < keyRowType.Properties.Count; ++memberOffset)
            {
                EdmMember property = (EdmMember)keyRowType.Properties[memberOffset];
                ExtractorMetadata.MemberInformation member = extractorMetadata.m_memberMap[memberOffset];
                int    identifierForMemberOffset           = this.m_translator.KeyManager.GetKeyIdentifierForMemberOffset(entityKey, memberOffset, keyRowType.Properties.Count);
                object obj = !entityKey.IsTemporary ? entityKey.FindValueByName(property.Name) : stateEntry.StateManager.GetEntityStateEntry(entityKey).CurrentValues[property.Name];
                values[memberOffset] = PropagatorResult.CreateKeyValue(member.Flags, obj, stateEntry, identifierForMemberOffset);
            }
            return(PropagatorResult.CreateStructuralValue(values, extractorMetadata.m_type, false));
        }
コード例 #3
0
        internal PropagatorResult RetrieveMember(
            IEntityStateEntry stateEntry,
            IExtendedDataRecord record,
            bool useCurrentValues,
            EntityKey key,
            int ordinal,
            ModifiedPropertiesBehavior modifiedPropertiesBehavior)
        {
            ExtractorMetadata.MemberInformation member = this.m_memberMap[ordinal];
            int identifier;

            if (member.IsKeyMember)
            {
                int memberOffset = member.EntityKeyOrdinal.Value;
                identifier = this.m_translator.KeyManager.GetKeyIdentifierForMemberOffset(key, memberOffset, ((EntityTypeBase)this.m_type).KeyMembers.Count);
            }
            else
            {
                identifier = !member.IsForeignKeyMember ? -1 : this.m_translator.KeyManager.GetKeyIdentifierForMember(key, record.GetName(ordinal), useCurrentValues);
            }
            int num;

            switch (modifiedPropertiesBehavior)
            {
            case ModifiedPropertiesBehavior.AllModified:
                num = 1;
                break;

            case ModifiedPropertiesBehavior.SomeModified:
                if (stateEntry.ModifiedProperties != null)
                {
                    num = stateEntry.ModifiedProperties[member.Ordinal] ? 1 : 0;
                    break;
                }
                goto default;

            default:
                num = 0;
                break;
            }
            bool isModified = num != 0;

            if (member.CheckIsNotNull && record.IsDBNull(ordinal))
            {
                throw EntityUtil.Update(Strings.Update_NullValue((object)record.GetName(ordinal)), (Exception)null, stateEntry);
            }
            object    obj       = record.GetValue(ordinal);
            EntityKey entityKey = obj as EntityKey;

            if ((object)entityKey != null)
            {
                return(this.CreateEntityKeyResult(stateEntry, entityKey));
            }
            IExtendedDataRecord record1 = obj as IExtendedDataRecord;

            if (record1 == null)
            {
                return(this.CreateSimpleResult(stateEntry, record, member, identifier, isModified, ordinal, obj));
            }
            ModifiedPropertiesBehavior modifiedPropertiesBehavior1 = isModified ? ModifiedPropertiesBehavior.AllModified : ModifiedPropertiesBehavior.NoneModified;
            UpdateTranslator           translator = this.m_translator;

            return(ExtractorMetadata.ExtractResultFromRecord(stateEntry, isModified, record1, useCurrentValues, translator, modifiedPropertiesBehavior1));
        }