Loads data stream stored in the file system.
Syntax
public abstract InputStream loadDataStream (String key) throws SDMPersistenceException, IllegalArgumentException
Parameters
-
key –
The key used for identifying the object and the input file.
Returns
The data stream
Exceptions
-
SDMPersistenceException class –
if object can not be loaded for any reason.
-
IllegalArgumentException –
if parameter 'key' is null.