private TableAnalyser GetLoadedConstraints(TableStructure table)
{
{
var res = (TableAnalyser)AnalyserCache.GetTableAnalyser("constraints");
if (res != null)
{
return(res);
}
res = (TableAnalyser)AnalyserCache.GetTableAnalyser("constraints:" + table.FullName.ToString());
if (res != null)
{
return(res);
}
}
InformationSchema ins = InformationSchema.LoadSchemaOnce(GetDbConn, m_conn.GetConnKey());
if (m_members.TableFilter != null && m_members.TableFilter.Count == 1)
{
// load constraint for one table
TableAnalyser ta = new TableAnalyser();
ConstraintsLoader loader = new ConstraintsLoader(GetDbConn(), ins, ta, table.FullName, m_members.TableMembers & GetConstraintLoadMode(), GetDbNameCondition());
loader.Run();
AnalyserCache.PutTableAnalyser("constraints:" + table.FullName.ToString(), ta);
return(ta);
}
else
{
// load constraints for all tables
TableAnalyser ta = new TableAnalyser();
ConstraintsLoader loader = new ConstraintsLoader(GetDbConn(), ins, ta, null, m_members.TableMembers & GetConstraintLoadMode(), GetDbNameCondition());
loader.Run();
AnalyserCache.PutTableAnalyser("constraints", ta);
return(ta);
}
}
public ConstraintsLoader(DbConnection conn, InformationSchema infoSchema, TableAnalyser analyser, NameWithSchema table, TableStructureMembers members, Condition dbnamecond)
{
m_conn = conn;
m_infoSchema = infoSchema;
m_table = table;
m_analyser = analyser;
m_members = members;
m_dbnamecond = dbnamecond;
}
public static InformationSchema LoadSchemaOnce(Func <DbConnection> conn, string groupId)
{
lock (m_schemaByGroupId)
{
if (m_schemaByGroupId.ContainsKey(groupId))
{
return(m_schemaByGroupId[groupId]);
}
}
InformationSchema res = new InformationSchema();
res.Load(conn());
lock (m_schemaByGroupId)
{
m_schemaByGroupId[groupId] = res;
}
return(res);
}
