opendap.dap

Interface StatusUI

public interface StatusUI

This interface is implemented by OPeNDAP client user interfaces which give feedback to the user on the status of the current deserialize operation. The user can also cancel the current deserialize through this interface.

See Also:

DataDDS

Method Summary

Modifier and Type	Method and Description
void	finished() Download finished notice.
void	incrementByteCount(int bytes) Add bytes to the total deserialize count.
boolean	userCancelled() User cancellation status.

Method Detail

incrementByteCount

void incrementByteCount(int bytes)

Add bytes to the total deserialize count. This is called by each BaseType's deserialize method to provide the user with feedback on the number of bytes that have been transferred so far. If some future version of OPeNDAP provides a correct Content-Length, then a sophisticated GUI could use this information to estimate the time remaining to download.

Parameters:

bytes - the number of bytes to add.

userCancelled

boolean userCancelled()

User cancellation status. This returns true when the user has clicked the cancel button of a GUI, or false if the download should proceed. This is called at various cancellation points throughout the deserialize process so that the download can be cancelled in an orderly fashion.

Returns:

true if the download should be cancelled.

finished

void finished()

Download finished notice. This allows the GUI to close itself or print a message to the user that the transfer is finished.