On refresh use the existing connection information and if it ends up being invalid
then get updated connection information, if available from the external connection file.
On every refresh get updated connection information from the external connection file,
if available, and use that instead of the existing connection information.
In this case the data refresh will fail if the external connection file is unavailable.
Never get updated connection information from the external connection file
even if it is available and even if the existing connection information is invalid
Field Detail
REQUIRED
public static final int REQUIRED
On refresh use the existing connection information and if it ends up being invalid
then get updated connection information, if available from the external connection file.
ALWAYS
public static final int ALWAYS
On every refresh get updated connection information from the external connection file,
if available, and use that instead of the existing connection information.
In this case the data refresh will fail if the external connection file is unavailable.
NEVER
public static final int NEVER
Never get updated connection information from the external connection file
even if it is available and even if the existing connection information is invalid