org.dmd.dmc.presentation

Interface DmcPresentationTrackerIF

All Known Implementing Classes:

Tracker

public interface DmcPresentationTrackerIF

The DmcPresentationTrackerIF defines a component that is responsible for tracking the status of a component that implements the DmcPresentationIF. Generally, components that implement this interface

Method Summary

Modifier and Type	Method and Description
void	addChangeListener(DmcChangeListenerIF listener) Adds a listener that's interested in whether anything has changed.
void	addReadyListener(DmcReadyListenerIF listener) Adds a listener that's interested in the tracker's state of readiness.
void	addValueChangeListener(DmcValueChangeListenerIF listener) Adds a listener that's interested in any value change in a presenter.
boolean	debug()
void	debug(boolean d) Sets whether the tracker is in debug mode or not.
void	debug(String message) Log the specified debug message.
void	isNotReady(DmcPresentationIF dpi) Indicates that the presentation component is "not ready".
void	isReady(DmcPresentationIF dpi) Indicates that the presentation component is "ready".
void	reset() Calling this method will call the reset method on all presentations; this will cause them all to display their original values.
void	startTracking() Calling this method will cause the tracker to query all of its presentation implementations to determine their current state.
void	track(DmcPresentationIF dpi) Adds the specified presentation implementation to the tracker.
void	validateAll() When a form is first rendered, it's often convenient to force validation on all of the fields so that they can display whether or not they're mandatory i.e.

Method Detail

track

void track(DmcPresentationIF dpi)

Adds the specified presentation implementation to the tracker. The tracker should also set itself on the presentation by calling its setTracker() method.

Parameters:

dpi -

addReadyListener

void addReadyListener(DmcReadyListenerIF listener)

Adds a listener that's interested in the tracker's state of readiness.

Parameters:

listener -

addChangeListener

void addChangeListener(DmcChangeListenerIF listener)

Adds a listener that's interested in whether anything has changed.

Parameters:

listener -

addValueChangeListener

void addValueChangeListener(DmcValueChangeListenerIF listener)

Adds a listener that's interested in any value change in a presenter.

Parameters:

listener -

isReady

void isReady(DmcPresentationIF dpi)

Indicates that the presentation component is "ready". Exactly what "ready" means is implementation specific.

Parameters:

dpi -

isNotReady

void isNotReady(DmcPresentationIF dpi)

Indicates that the presentation component is "not ready". Exactly what "not ready" means is implementation specific.

Parameters:

dpi -

startTracking

void startTracking()

Calling this method will cause the tracker to query all of its presentation implementations to determine their current state.

reset

void reset()

Calling this method will call the reset method on all presentations; this will cause them all to display their original values.

debug

void debug(boolean d)

Sets whether the tracker is in debug mode or not.

Parameters:

d - true for debug.

debug

boolean debug()

Returns:

the tracker's debug state.

debug

void debug(String message)

Log the specified debug message.

Parameters:

message - the message to be logged.

validateAll

void validateAll()

When a form is first rendered, it's often convenient to force validation on all of the fields so that they can display whether or not they're mandatory i.e. that they require a value. Calling this method will call isValid() on all DmcPresentationIF implementers being tracked.