internal EntityRecordInfo(DataRecordInfo info, EntityKey entityKey, EntitySet entitySet)
: base(info)
{
_entityKey = entityKey;
#if DEBUG
try
{
ValidateEntityType(entitySet);
}
catch
{
Debug.Assert(false, "should always be valid EntityType when internally constructed");
throw;
}
#endif
}
/// <summary>
/// Reusing TypeUsage and FieldMetadata from another EntityRecordInfo which has all the same info
/// but with a different EntityKey instance.
/// </summary>
internal EntityRecordInfo(DataRecordInfo info, EntityKey entityKey, EntitySet entitySet)
: base(info)
{
_entityKey = entityKey;
_entitySet = entitySet;
#if DEBUG
try
{
ValidateEntityType(entitySet);
}
catch
{
Debug.Assert(false, "should always be valid EntityType when internally constructed");
throw;
}
#endif
}
internal StateManagerTypeMetadata(EdmType edmType, ObjectTypeMapping mapping)
{
Debug.Assert(null != edmType, "null EdmType");
Debug.Assert(
Helper.IsEntityType(edmType) ||
Helper.IsComplexType(edmType),
"not Complex or EntityType");
Debug.Assert(
ReferenceEquals(mapping, null) ||
ReferenceEquals(mapping.EdmType, edmType),
"different EdmType instance");
_typeUsage = TypeUsage.Create(edmType);
_recordInfo = new DataRecordInfo(_typeUsage);
var members = TypeHelpers.GetProperties(edmType);
_members = new StateManagerMemberMetadata[members.Count];
_objectNameToOrdinal = new Dictionary<string, int>(members.Count);
_cLayerNameToOrdinal = new Dictionary<string, int>(members.Count);
ReadOnlyMetadataCollection<EdmMember> keyMembers = null;
if (Helper.IsEntityType(edmType))
{
keyMembers = ((EntityType)edmType).KeyMembers;
}
for (var i = 0; i < _members.Length; ++i)
{
var member = members[i];
ObjectPropertyMapping memberMap = null;
if (null != mapping)
{
memberMap = mapping.GetPropertyMap(member.Name);
if (null != memberMap)
{
_objectNameToOrdinal.Add(memberMap.ClrProperty.Name, i); // olayer name
}
}
_cLayerNameToOrdinal.Add(member.Name, i); // clayer name
// Determine whether this member is part of the identity of the entity.
_members[i] = new StateManagerMemberMetadata(memberMap, member, ((null != keyMembers) && keyMembers.Contains(member)));
}
}
internal object CreateComplex(IExtendedDataRecord record, DataRecordInfo recordInfo, object result)
{
Debug.Assert(null != record, "null IExtendedDataRecord");
Debug.Assert(null != recordInfo, "null DataRecordInfo");
Debug.Assert(null != recordInfo.RecordType, "null TypeUsage");
Debug.Assert(null != recordInfo.RecordType.EdmType, "null EdmType");
Debug.Assert(Helper.IsEntityType(recordInfo.RecordType.EdmType) ||
Helper.IsComplexType(recordInfo.RecordType.EdmType),
"not EntityType or ComplexType");
Plan plan = GetPlan(record, recordInfo);
if (null == result)
{
result = ((Func<object>)plan.ClrType)();
}
SetProperties(record, result, plan.Properties);
return result;
}
/// <summary>
/// Reusing TypeUsage and FieldMetadata from another EntityRecordInfo which has all the same info
/// but with a different EntityKey instance.
/// </summary>
internal DataRecordInfo(DataRecordInfo recordInfo)
{
_fieldMetadata = recordInfo._fieldMetadata;
_metadata = recordInfo._metadata;
}
/// <summary>
/// Reusing TypeUsage and FieldMetadata from another EntityRecordInfo which has all the same info
/// but with a different EntityKey instance.
/// </summary>
internal DataRecordInfo(DataRecordInfo recordInfo)
{
_fieldMetadata = recordInfo._fieldMetadata;
_metadata = recordInfo._metadata;
}
private Plan GetPlan(IExtendedDataRecord record, DataRecordInfo recordInfo)
{
Debug.Assert(null != record, "null IExtendedDataRecord");
Debug.Assert(null != recordInfo, "null DataRecordInfo");
Debug.Assert(null != recordInfo.RecordType, "null TypeUsage");
Plan[] plans = _lastPlans ?? (_lastPlans = new Plan[MaxPlanCount]);
// find an existing plan in circular buffer
int index = _lastPlanIndex - 1;
for (int i = 0; i < MaxPlanCount; ++i)
{
index = (index + 1) % MaxPlanCount;
if (null == plans[index])
{
break;
}
if (plans[index].Key == recordInfo.RecordType)
{
_lastPlanIndex = index;
return plans[index];
}
}
Debug.Assert(0 <= index, "negative index");
Debug.Assert(index != _lastPlanIndex || (null == plans[index]), "index wrapped around");
// create a new plan
ObjectTypeMapping mapping = System.Data.Common.Internal.Materialization.Util.GetObjectMapping(recordInfo.RecordType.EdmType, _workspace);
Debug.Assert(null != mapping, "null ObjectTypeMapping");
Debug.Assert(Helper.IsComplexType(recordInfo.RecordType.EdmType),
"IExtendedDataRecord is not ComplexType");
_lastPlanIndex = index;
plans[index] = new Plan(recordInfo.RecordType, mapping, recordInfo.FieldMetadata);
return plans[index];
}