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));
}
internal static PropagatorResult ExtractResultFromRecord(
IEntityStateEntry stateEntry,
bool isModified,
IExtendedDataRecord record,
bool useCurrentValues,
UpdateTranslator translator,
ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
StructuralType edmType = (StructuralType)record.DataRecordInfo.RecordType.EdmType;
ExtractorMetadata extractorMetadata = translator.GetExtractorMetadata(stateEntry.EntitySet, edmType);
EntityKey entityKey = stateEntry.EntityKey;
PropagatorResult[] values = new PropagatorResult[record.FieldCount];
for (int ordinal = 0; ordinal < values.Length; ++ordinal)
{
values[ordinal] = extractorMetadata.RetrieveMember(stateEntry, record, useCurrentValues, entityKey, ordinal, modifiedPropertiesBehavior);
}
return(PropagatorResult.CreateStructuralValue(values, edmType, isModified));
}
private PropagatorResult ConvertStateEntryToPropagatorResult(
IEntityStateEntry stateEntry,
bool useCurrentValues,
ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
try
{
IExtendedDataRecord record = useCurrentValues ? (IExtendedDataRecord)stateEntry.CurrentValues : (IExtendedDataRecord)stateEntry.OriginalValues;
bool isModified = false;
return(ExtractorMetadata.ExtractResultFromRecord(stateEntry, isModified, record, useCurrentValues, this.m_updateTranslator, modifiedPropertiesBehavior));
}
catch (Exception ex)
{
if (ex.RequiresContext())
{
throw EntityUtil.Update(Strings.Update_ErrorLoadingRecord, ex, stateEntry);
}
throw;
}
}
private PropagatorResult ConvertStateEntryToPropagatorResult(
IEntityStateEntry stateEntry, bool useCurrentValues, ModifiedPropertiesBehavior modifiedPropertiesBehavior)
{
DebugCheck.NotNull(stateEntry);
try
{
var record = useCurrentValues
? stateEntry.CurrentValues
: (IExtendedDataRecord)stateEntry.OriginalValues;
var isModified = false; // the root of the state entry is unchanged because the type is static
return(ExtractorMetadata.ExtractResultFromRecord(
stateEntry, isModified, record, useCurrentValues, m_updateTranslator, modifiedPropertiesBehavior));
}
catch (Exception e)
{
if (e.RequiresContext())
{
throw EntityUtil.Update(Strings.Update_ErrorLoadingRecord, e, stateEntry);
}
throw;
}
}
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));
}