protected virtual void VisitEntityIdentity(SimpleEntityIdentity entityIdentity, TArgType arg)
{
foreach (SimpleColumnMap columnMap in entityIdentity.Keys)
{
columnMap.Accept(this, arg);
}
}
/// <summary>
/// SimpleEntityIdentity
/// </summary>
/// <param name="entityIdentity"></param>
/// <param name="dumper"></param>
/// <returns></returns>
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 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)
{
EntityType 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
ColumnMap[] ordinalToColumnMap = new ColumnMap[storeDataReader.FieldCount];
foreach (ColumnMap propertyColumnMap in propertyColumnMaps)
{
int ordinal = ((ScalarColumnMap)propertyColumnMap).ColumnPos;
ordinalToColumnMap[ordinal] = propertyColumnMap;
}
// Now build the list of KeyColumns;
IList <EdmMember> keyMembers = entityType.KeyMembers;
SimpleColumnMap[] keyColumns = new SimpleColumnMap[keyMembers.Count];
int keyMemberIndex = 0;
foreach (EdmMember keyMember in keyMembers)
{
int keyOrdinal = GetMemberOrdinalFromReader(storeDataReader, keyMember, edmType, renameList);
Debug.Assert(keyOrdinal >= 0, "keyMember for entity is not found by name in the data reader?");
ColumnMap keyColumnMap = ordinalToColumnMap[keyOrdinal];
Debug.Assert(null != keyColumnMap, "keyMember for entity isn't in properties collection for the entity?");
keyColumns[keyMemberIndex] = (SimpleColumnMap)keyColumnMap;
keyMemberIndex++;
}
SimpleEntityIdentity entityIdentity = new SimpleEntityIdentity(entitySet, keyColumns);
EntityColumnMap result = new EntityColumnMap(TypeUsage.Create(edmType), edmType.Name, propertyColumnMaps, entityIdentity);
return(result);
}
/// <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)
{
EntityType 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
ColumnMap[] ordinalToColumnMap = new ColumnMap[storeDataReader.FieldCount];
foreach (ColumnMap propertyColumnMap in propertyColumnMaps)
{
int ordinal = ((ScalarColumnMap)propertyColumnMap).ColumnPos;
ordinalToColumnMap[ordinal] = propertyColumnMap;
}
// Now build the list of KeyColumns;
IList<EdmMember> keyMembers = entityType.KeyMembers;
SimpleColumnMap[] keyColumns = new SimpleColumnMap[keyMembers.Count];
int keyMemberIndex = 0;
foreach (EdmMember keyMember in keyMembers)
{
int keyOrdinal = GetMemberOrdinalFromReader(storeDataReader, keyMember, edmType, renameList);
Debug.Assert(keyOrdinal >= 0, "keyMember for entity is not found by name in the data reader?");
ColumnMap keyColumnMap = ordinalToColumnMap[keyOrdinal];
Debug.Assert(null != keyColumnMap, "keyMember for entity isn't in properties collection for the entity?");
keyColumns[keyMemberIndex] = (SimpleColumnMap)keyColumnMap;
keyMemberIndex++;
}
SimpleEntityIdentity entityIdentity = new SimpleEntityIdentity(entitySet, keyColumns);
EntityColumnMap 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)
{
SimpleColumnMap[] newKeys = VisitList(entityIdentity.Keys, replacementVarMap);
return(new SimpleEntityIdentity(entityIdentity.EntitySet, newKeys));
}
protected virtual EntityIdentity VisitEntityIdentity(SimpleEntityIdentity entityIdentity, TArgType arg)
{
return(entityIdentity);
}
