private static EntityColumnMap CreateEntityTypeElementColumnMap(
DbDataReader storeDataReader,
EdmType edmType,
EntitySet entitySet,
ColumnMap[] propertyColumnMaps,
Dictionary <string, FunctionImportReturnTypeStructuralTypeColumnRenameMapping> renameList)
{
EntityType entityType = (EntityType)edmType;
ColumnMap[] columnMapArray = new ColumnMap[storeDataReader.FieldCount];
foreach (ColumnMap propertyColumnMap in propertyColumnMaps)
{
int columnPos = ((ScalarColumnMap)propertyColumnMap).ColumnPos;
columnMapArray[columnPos] = propertyColumnMap;
}
IList <EdmMember> keyMembers = (IList <EdmMember>)entityType.KeyMembers;
SimpleColumnMap[] keyColumns = new SimpleColumnMap[keyMembers.Count];
int index = 0;
foreach (EdmMember member in (IEnumerable <EdmMember>)keyMembers)
{
int ordinalFromReader = ColumnMapFactory.GetMemberOrdinalFromReader(storeDataReader, member, edmType, renameList);
ColumnMap columnMap = columnMapArray[ordinalFromReader];
keyColumns[index] = (SimpleColumnMap)columnMap;
++index;
}
SimpleEntityIdentity simpleEntityIdentity = new SimpleEntityIdentity(entitySet, keyColumns);
return(new EntityColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, (EntityIdentity)simpleEntityIdentity));
}
protected override EntityIdentity VisitEntityIdentity(
SimpleEntityIdentity entityIdentity,
VarMap replacementVarMap)
{
SimpleColumnMap[] keyColumns = this.VisitList <SimpleColumnMap>(entityIdentity.Keys, replacementVarMap);
return((EntityIdentity) new SimpleEntityIdentity(entityIdentity.EntitySet, keyColumns));
}
protected override void VisitEntityIdentity(SimpleEntityIdentity entityIdentity, Dump dumper)
{
using (new Dump.AutoXml(dumper, "SimpleEntityIdentity"))
{
if (entityIdentity.Keys.Length <= 0)
{
return;
}
using (new Dump.AutoXml(dumper, "keys"))
this.VisitList <SimpleColumnMap>(entityIdentity.Keys, dumper);
}
}
/// <summary>
/// SimpleEntityIdentity
/// </summary>
protected override void VisitEntityIdentity(SimpleEntityIdentity entityIdentity, Dump dumper)
{
using (new AutoXml(dumper, "SimpleEntityIdentity"))
{
if (entityIdentity.Keys.Length > 0)
{
using (new AutoXml(dumper, "keys"))
{
VisitList(entityIdentity.Keys, dumper);
}
}
}
}
// <summary>
// Build the entityColumnMap from a store datareader, a type and an entitySet and
// a list of properties.
// </summary>
private static EntityColumnMap CreateEntityTypeElementColumnMap(
DbDataReader storeDataReader, EdmType edmType, EntitySet entitySet,
ColumnMap[] propertyColumnMaps, Dictionary <string, FunctionImportReturnTypeStructuralTypeColumnRenameMapping> renameList)
{
var entityType = (EntityType)edmType;
// The tricky part here is
// that the KeyColumns list must point at the same ColumnMap(s) that
// the properties list points to, so we build a quick array of
// ColumnMap(s) that are indexed by their ordinal; then we can walk
// the list of keyMembers, and find the ordinal in the reader, and
// pick the same ColumnMap for it.
// Build the ordinal -> ColumnMap index
var ordinalToColumnMap = new ColumnMap[storeDataReader.FieldCount];
foreach (var propertyColumnMap in propertyColumnMaps)
{
var ordinal = ((ScalarColumnMap)propertyColumnMap).ColumnPos;
ordinalToColumnMap[ordinal] = propertyColumnMap;
}
// Now build the list of KeyColumns;
IList <EdmMember> keyMembers = entityType.KeyMembers;
var keyColumns = new SimpleColumnMap[keyMembers.Count];
var keyMemberIndex = 0;
foreach (var keyMember in keyMembers)
{
var keyOrdinal = GetMemberOrdinalFromReader(storeDataReader, keyMember, edmType, renameList);
Debug.Assert(keyOrdinal >= 0, "keyMember for entity is not found by name in the data reader?");
var keyColumnMap = ordinalToColumnMap[keyOrdinal];
Debug.Assert(null != keyColumnMap, "keyMember for entity isn't in properties collection for the entity?");
keyColumns[keyMemberIndex] = (SimpleColumnMap)keyColumnMap;
keyMemberIndex++;
}
var entityIdentity = new SimpleEntityIdentity(entitySet, keyColumns);
var result = new EntityColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, entityIdentity);
return(result);
}
/// <summary>
/// Copies the SimpleEntityIdentity
/// </summary>
/// <param name="entityIdentity"> </param>
/// <param name="replacementVarMap"> </param>
/// <returns> </returns>
protected override EntityIdentity VisitEntityIdentity(SimpleEntityIdentity entityIdentity, VarMap replacementVarMap)
{
var newKeys = VisitList(entityIdentity.Keys, replacementVarMap);
return(new SimpleEntityIdentity(entityIdentity.EntitySet, newKeys));
}
/// <summary>
/// Build the entityColumnMap from a store datareader, a type and an entitySet and
/// a list ofproperties.
/// </summary>
/// <param name="storeDataReader"> </param>
/// <param name="edmType"> </param>
/// <param name="entitySet"> </param>
/// <param name="propertyColumnMaps"> </param>
/// <returns> </returns>
private static EntityColumnMap CreateEntityTypeElementColumnMap(
DbDataReader storeDataReader, EdmType edmType, EntitySet entitySet,
ColumnMap[] propertyColumnMaps, Dictionary<string, FunctionImportReturnTypeStructuralTypeColumnRenameMapping> renameList)
{
var entityType = (EntityType)edmType;
// The tricky part here is
// that the KeyColumns list must point at the same ColumnMap(s) that
// the properties list points to, so we build a quick array of
// ColumnMap(s) that are indexed by their ordinal; then we can walk
// the list of keyMembers, and find the ordinal in the reader, and
// pick the same ColumnMap for it.
// Build the ordinal -> ColumnMap index
var ordinalToColumnMap = new ColumnMap[storeDataReader.FieldCount];
foreach (var propertyColumnMap in propertyColumnMaps)
{
var ordinal = ((ScalarColumnMap)propertyColumnMap).ColumnPos;
ordinalToColumnMap[ordinal] = propertyColumnMap;
}
// Now build the list of KeyColumns;
IList<EdmMember> keyMembers = entityType.KeyMembers;
var keyColumns = new SimpleColumnMap[keyMembers.Count];
var keyMemberIndex = 0;
foreach (var keyMember in keyMembers)
{
var keyOrdinal = GetMemberOrdinalFromReader(storeDataReader, keyMember, edmType, renameList);
Debug.Assert(keyOrdinal >= 0, "keyMember for entity is not found by name in the data reader?");
var keyColumnMap = ordinalToColumnMap[keyOrdinal];
Debug.Assert(null != keyColumnMap, "keyMember for entity isn't in properties collection for the entity?");
keyColumns[keyMemberIndex] = (SimpleColumnMap)keyColumnMap;
keyMemberIndex++;
}
var entityIdentity = new SimpleEntityIdentity(entitySet, keyColumns);
var result = new EntityColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, entityIdentity);
return result;
}
