protected void SaveObjects(ManagementSession session)
{
var concreteCompositeType = new List<IClass>(this.database.MetaPopulation.Classes);
concreteCompositeType.Sort();
foreach (var type in concreteCompositeType)
{
var atLeastOne = false;
var sql = "SELECT " + Mapping.ColumnNameForObject + ", " + Mapping.ColumnNameForCache + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjects + "\n";
sql += "WHERE " + Mapping.ColumnNameForType + "=" + Mapping.ParamNameForType+ "\n";
sql += "ORDER BY " + Mapping.ColumnNameForObject;
using (var command = session.CreateCommand(sql))
{
command.AddInParameter(Mapping.ParamNameForType, type.Id);
using (var reader = command.ExecuteReader())
{
while (reader.Read())
{
if (atLeastOne == false)
{
atLeastOne = true;
this.writer.WriteStartElement(Serialization.ObjectType);
this.writer.WriteAttributeString(Serialization.Id, type.Id.ToString());
}
else
{
this.writer.WriteString(Serialization.ObjectsSplitter);
}
var objectId = this.database.ObjectIds.Parse(reader[0].ToString());
var cacheId = new ObjectVersionLong(reader[1].ToString());
this.writer.WriteString(objectId.Value + Serialization.ObjectSplitter + cacheId.Value);
}
reader.Close();
}
}
if (atLeastOne)
{
this.writer.WriteEndElement();
}
}
}
private void LoadObjectsPostProcess(ManagementSession session)
{
var sql = new StringBuilder();
sql.Append("SET IDENTITY_INSERT " + this.database.Mapping.TableNameForObjects + " ON");
lock (this)
{
using (var command = session.CreateCommand(sql.ToString()))
{
command.ExecuteNonQuery();
}
}
foreach (var type in this.database.MetaPopulation.Composites)
{
if (type.IsClass)
{
sql = new StringBuilder();
sql.Append("INSERT INTO " + this.database.Mapping.TableNameForObjects + " (" + Mapping.ColumnNameForObject + "," + Mapping.ColumnNameForType + "," + Mapping.ColumnNameForCache + ")\n");
sql.Append("SELECT " + Mapping.ColumnNameForObject + "," + Mapping.ColumnNameForType + ", " + Reference.InitialCacheId + "\n");
sql.Append("FROM " + this.database.Mapping.TableNameForObjectByClass[type.ExclusiveClass]);
lock (this)
{
using (var command = session.CreateCommand(sql.ToString()))
{
command.ExecuteNonQuery();
}
}
}
}
sql = new StringBuilder();
sql.Append("SET IDENTITY_INSERT " + this.database.Mapping.TableNameForObjects + " OFF");
lock (this)
{
using (var command = session.CreateCommand(sql.ToString()))
{
command.ExecuteNonQuery();
}
}
}
protected void SaveRelations(ManagementSession session)
{
var exclusiverRootClassesByObjectType = new Dictionary<IObjectType, HashSet<IObjectType>>();
var relations = new List<IRelationType>(this.database.MetaPopulation.RelationTypes);
relations.Sort();
foreach (var relation in relations)
{
var associationType = relation.AssociationType;
if (associationType.ObjectType.ExistClass)
{
var roleType = relation.RoleType;
var sql = string.Empty;
if (roleType.ObjectType.IsUnit)
{
HashSet<IObjectType> exclusiveRootClasses;
if (!exclusiverRootClassesByObjectType.TryGetValue(associationType.ObjectType, out exclusiveRootClasses))
{
exclusiveRootClasses = new HashSet<IObjectType>();
foreach (var concreteClass in associationType.ObjectType.Classes)
{
exclusiveRootClasses.Add(concreteClass.ExclusiveClass);
}
exclusiverRootClassesByObjectType[associationType.ObjectType] = exclusiveRootClasses;
}
var first = true;
foreach (var exclusiveRootClass in exclusiveRootClasses)
{
if (first)
{
first = false;
}
else
{
sql += "UNION\n";
}
sql += "SELECT " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForAssociation + ", " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[(IClass)exclusiveRootClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " IS NOT NULL\n";
}
sql += "ORDER BY " + Mapping.ColumnNameForAssociation;
}
else
{
if ((roleType.IsMany && associationType.IsMany) || !relation.ExistExclusiveClasses)
{
sql += "SELECT " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForRelationByRelationType[relation] + "\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole;
}
else
{
// use foreign keys
if (roleType.IsOne)
{
sql += "SELECT " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForAssociation + ", " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[associationType.ObjectType.ExclusiveClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[roleType.RelationType] + " IS NOT NULL\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation;
}
else
{
// role.Many
sql += "SELECT " + this.database.Mapping.ColumnNameByRelationType[associationType.RelationType] + " As " + Mapping.ColumnNameForAssociation + ", " + Mapping.ColumnNameForObject + " As " + Mapping.ColumnNameForRole + "\n";
sql += "FROM " + this.database.Mapping.TableNameForObjectByClass[((IComposite)roleType.ObjectType).ExclusiveClass] + "\n";
sql += "WHERE " + this.database.Mapping.ColumnNameByRelationType[associationType.RelationType] + " IS NOT NULL\n";
sql += "ORDER BY " + Mapping.ColumnNameForAssociation + "," + Mapping.ColumnNameForRole;
}
}
}
using (var command = session.CreateCommand(sql))
{
using (var reader = command.ExecuteReader())
{
if (roleType.IsMany)
{
using (var relationTypeManyXmlWriter = new RelationTypeManyXmlWriter(relation, this.writer))
{
while (reader.Read())
{
var a = long.Parse(reader[0].ToString());
var r = long.Parse(reader[1].ToString());
relationTypeManyXmlWriter.Write(a, r);
}
relationTypeManyXmlWriter.Close();
}
}
else
{
using (var relationTypeOneXmlWriter = new RelationTypeOneXmlWriter(relation, this.writer))
{
while (reader.Read())
{
var a = long.Parse(reader[0].ToString());
if (roleType.ObjectType.IsUnit)
{
var unitTypeTag = ((IUnit)roleType.ObjectType).UnitTag;
var r = command.GetValue(reader, unitTypeTag, 1);
var content = Serialization.WriteString(unitTypeTag, r);
relationTypeOneXmlWriter.Write(a, content);
}
else
{
var r = reader[1];
relationTypeOneXmlWriter.Write(a, XmlConvert.ToString(long.Parse(r.ToString())));
}
}
relationTypeOneXmlWriter.Close();
}
}
}
}
}
}
}