protected void ReloadCache(string tableName)
{
DataTableHandler handler = TableDatasets[tableName];
ICache cache = handler.Cache;
foreach (object o in cache.Keys)
{
ReloadObject(cache[o] as DataObject);
}
}
// Retourne l'objet a partir de sa primary key
// Returns the object from its primary key
protected override TObject FindObjectByKeyImpl <TObject>(object key)
{
MemberInfo[] members = typeof(TObject).GetMembers();
var ret = (TObject)Activator.CreateInstance(typeof(TObject));
string tableName = ret.TableName;
DataTableHandler dth = TableDatasets[tableName];
string whereClause = null;
if (dth.UsesPreCaching)
{
DataObject obj = dth.GetPreCachedObject(key);
if (obj != null)
{
return(obj as TObject);
}
}
// Escape PK value
key = Escape(key.ToString());
for (int i = 0; i < members.Length; i++)
{
object[] keyAttrib = members[i].GetCustomAttributes(typeof(PrimaryKey), true);
if (keyAttrib.Length > 0)
{
whereClause = "`" + members[i].Name + "` = '" + key + "'";
break;
}
}
if (whereClause == null)
{
whereClause = "`" + ret.TableName + "_ID` = '" + key + "'";
}
var objs = SelectObjectsImpl <TObject>(whereClause, IsolationLevel.DEFAULT);
if (objs.Count > 0)
{
dth.SetPreCachedObject(key, objs[0]);
return(objs[0]);
}
return(null);
}
// Met a jour ou ajoute un objet dans la DB
// Updates or adds an object in the DB
public bool UpdateInCache <TObject>(object key)
where TObject : DataObject
{
MemberInfo[] members = typeof(TObject).GetMembers();
var ret = (TObject)Activator.CreateInstance(typeof(TObject));
string tableName = ret.TableName;
DataTableHandler dth = TableDatasets[tableName];
string whereClause = null;
if (!dth.UsesPreCaching || key == null)
{
return(false);
}
// Escape PK value
key = Escape(key.ToString());
for (int i = 0; i < members.Length; i++)
{
object[] keyAttrib = members[i].GetCustomAttributes(typeof(PrimaryKey), true);
if (keyAttrib.Length > 0)
{
whereClause = "`" + members[i].Name + "` = '" + key + "'";
break;
}
}
if (whereClause == null)
{
whereClause = "`" + ret.TableName + "_ID` = '" + key + "'";
}
var objs = SelectObjects <TObject>(whereClause);
if (objs.Count > 0)
{
dth.SetPreCachedObject(key, objs[0]);
return(true);
}
return(false);
}
protected void DeleteFromCache(string tableName, DataObject obj)
{
DataTableHandler handler = TableDatasets[tableName];
handler.SetCacheObject(obj.ObjectId, null);
}
public void RegisterDataObject(Type objType)
{
if (TableDatasets.ContainsKey(GetTableOrViewName(objType)))
{
return;
}
bool primary = false;
bool relations = false;
MemberInfo primaryIndexMember = null;
string tableName = GetTableOrViewName(objType);
var ds = new DataSet();
var table = new System.Data.DataTable(tableName);
table.Columns.Add(tableName + "_ID", typeof(string));
MemberInfo[] myMembers = objType.GetMembers();
for (int i = 0; i < myMembers.Length; i++)
{
object[] myAttributes = myMembers[i].GetCustomAttributes(typeof(PrimaryKey), true);
if (myAttributes.Length > 0)
{
primary = true;
if (myMembers[i] is PropertyInfo)
{
table.Columns.Add(myMembers[i].Name, ((PropertyInfo)myMembers[i]).PropertyType);
}
else
{
table.Columns.Add(myMembers[i].Name, ((FieldInfo)myMembers[i]).FieldType);
}
table.Columns[myMembers[i].Name].AutoIncrement = ((PrimaryKey)myAttributes[0]).AutoIncrement;
table.Columns[myMembers[i].Name].AutoIncrementSeed = ((PrimaryKey)myAttributes[0]).IncrementValue;
var index = new DataColumn[1];
index[0] = table.Columns[myMembers[i].Name];
primaryIndexMember = myMembers[i];
table.PrimaryKey = index;
continue;
}
myAttributes = myMembers[i].GetCustomAttributes(typeof(DataElement), true);
if (myAttributes.Length > 0)
{
if (myMembers[i] is PropertyInfo)
{
table.Columns.Add(myMembers[i].Name, ((PropertyInfo)myMembers[i]).PropertyType);
}
else
{
table.Columns.Add(myMembers[i].Name, ((FieldInfo)myMembers[i]).FieldType);
}
table.Columns[myMembers[i].Name].AllowDBNull = ((DataElement)myAttributes[0]).AllowDbNull;
if (((DataElement)myAttributes[0]).Unique)
{
table.Constraints.Add(new UniqueConstraint("UNIQUE_" + myMembers[i].Name, table.Columns[myMembers[i].Name]));
}
if (((DataElement)myAttributes[0]).Index)
{
table.Columns[myMembers[i].Name].ExtendedProperties.Add("INDEX", true);
}
if (((DataElement)myAttributes[0]).Varchar > 0)
{
table.Columns[myMembers[i].Name].ExtendedProperties.Add("VARCHAR", ((DataElement)myAttributes[0]).Varchar);
}
myAttributes = GetRelationAttributes(myMembers[i]);
if (myAttributes.Length > 0)
{
relations = true;
}
}
}
if (primary == false)
{
var index = new DataColumn[1];
index[0] = table.Columns[tableName + "_ID"];
table.PrimaryKey = index;
}
if (Connection.IsSQLConnection)
{
Connection.CheckOrCreateTable(table);
}
ds.DataSetName = tableName;
ds.EnforceConstraints = true;
ds.CaseSensitive = false;
ds.Tables.Add(table);
var dth = new DataTableHandler(ds);
dth.HasRelations = relations;
dth.UsesPreCaching = DataObject.GetPreCachedFlag(objType);
TableDatasets.Add(tableName, dth);
}
