oracle.dss.util

Interface DataDirectorListener

All Superinterfaces:

java.util.EventListener

All Known Implementing Classes:

GaugeModelAdapter, GraphModelAdapter, ModelAdapter

public interface DataDirectorListener
extends java.util.EventListener

The listener for notification of changes to data.

Method Summary

Methods

Modifier and Type	Method and Description
void	pollingRequired(PollingRequiredEvent polling) Event fired to inform listeners that the given DataDirector requires polling to retrieve data using the DataDirector3 events getStatus and possibly fireEvents.
void	viewDataAvailable(DataAvailableEvent e) Responds when data is ready or revoked.
void	viewDataChanged(DataChangedEvent e) Responds to changes to the actual data or metadata.
void	waitDataAvailable(WaitDataAvailableEvent e) Responds when data is available to replace a WaitData.

Method Detail

viewDataChanged

void viewDataChanged(DataChangedEvent e)

Responds to changes to the actual data or metadata.

Parameters:

e - Information about the change in the data.

viewDataAvailable

void viewDataAvailable(DataAvailableEvent e)

Responds when data is ready or revoked.

Parameters:

e - Information about the data provider.

waitDataAvailable

void waitDataAvailable(WaitDataAvailableEvent e)

Responds when data is available to replace a WaitData. When a view requests a data value that a data source has not fetched yet, the DataDirector returns a WaitData object instead of the data value. Then, when the data has been fetched and is available, the DataDirector calls this method.

Parameters:

e - Information about the fetch.

See Also:

DataDirector, WaitData

pollingRequired

void pollingRequired(PollingRequiredEvent polling)

Event fired to inform listeners that the given DataDirector requires polling to retrieve data using the DataDirector3 events getStatus and possibly fireEvents.

Parameters:

event - Event informing listener of data needing polling