public static SqlConnectionPool Instance(SqlDBCredentials credentials)
{
SqlConnectionPool retVal = s_PoolList.Find(credentials);
if (retVal == null)
{
retVal = new SqlConnectionPool(credentials);
s_PoolList.Add(retVal);
}
return(retVal);
}
protected DataSourceBase(SqlDBCredentials sqlCredentials)
{
_internalDatabaseType = InternalDatabaseType.Unknown;
Credentials = sqlCredentials;
m_DB = SqlConnectionPool.Instance(sqlCredentials).GetDataSource();
if (m_DB == null)
{
throw new DataSourceException("Could not instantiate {0} with the following credentials: {1}", GetType(), sqlCredentials);
}
if (CheckDeclarations)
{
ValidateMethods(GetType());
}
LoadCachedTypeInformation();
}
public static DBResult GetDatabaseVersion(SqlDBCredentials credentials, out SoftwareVersion version, out InternalDatabaseType databaseType)
{
DBResult retVal = new DBResult(DBResult.Result.Success);
try
{
_databaseVersionLock.Lock();
version = null;
databaseType = InternalDatabaseType.Unknown;
String indexKey = credentials.ToParsableString();
if (!_databaseVersionLookup.TryGetValue(indexKey, out version))
{
ISqlDataSource ds = SqlConnectionPool.Instance(credentials).GetDataSource();
DatabaseDataReader reader;
QueryString sql = ds.FormatTrusted("SELECT * FROM I.seq where name in ('{0}', '{1}')", KEY_DB_TYPE, KEY_SCHEMA_VER);
retVal = ds.Query(sql, out reader);
if (retVal.ResultCode == DBResult.Result.Success && reader.HasRows)
{
while (reader.Read())
{
String key = DBUtil.GetString(reader[COL_KEY]);
if (key == KEY_SCHEMA_VER)
{
version = DBUtil.GetSoftwareVersion(reader[COL_VALUE]);
}
else if (key == KEY_DB_TYPE)
{
databaseType = (InternalDatabaseType)DBUtil.GetInt32(reader[COL_VALUE]);
}
}
_databaseVersionLookup.Add(indexKey, version);
}
}
}
finally
{
_databaseVersionLock.Unlock();
}
return(retVal);
}
public void Init(SqlDBCredentials creds)
{
m_Credentials = creds;
m_sqlDataSource = SqlConnectionPool.Instance(m_Credentials).GetDataSource();
}
