AbstractChangeable

java.lang.Object

com.inductiveautomation.ignition.common.util.AbstractChangeable

All Implemented Interfaces:: Changeable

Direct Known Subclasses:: AbstractReportActionConfig, BrowsableLibrary, BrowsableSelectionModel, ChartStatusContext, ClientStepRegistry, ComponentSelection, DesignerComponentStoreBridgeImpl, EditablePageConfig, GalleryModel, GradientParams, PipelineBlockModel, ReportSchedule, RMUndoer, SampleData, Segment, StyleAttributeEditor, SymbolStateConfig, SymbolThemeConfig

public class AbstractChangeable extends Object implements Changeable

Convenience base-class for any object that wants to manage change listeners

Field Summary

Fields

Modifier and Type

Field

Description

protected ChangeEvent

changeEvent

Only one ChangeEvent is needed per model instance since the event's only (read-only) state is the source property.

protected EventListenerList

listenerList
Constructor Summary

Constructors

Constructor

Description

AbstractChangeable()
Method Summary

Modifier and Type

Method

Description

void

addChangeListener(ChangeListener l)

Adds a ChangeListener to the model.

protected void

fireStateChanged()

Runs each ChangeListener's stateChanged method.

ChangeListener[]

getChangeListeners()

Returns an array of all the ChangeListeners added to this DefaultColorSelectionModel with addChangeListener.

void

removeChangeListener(ChangeListener l)

Removes a ChangeListener from the model.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details
- changeEvent
  
  protected transient ChangeEvent changeEvent
  
  Only one ChangeEvent is needed per model instance since the event's only (read-only) state is the source property. The source of events generated here is always "this".
- listenerList
  
  protected EventListenerList listenerList
Constructor Details
- AbstractChangeable
  
  public AbstractChangeable()
Method Details
- addChangeListener
  
  public void addChangeListener(ChangeListener l)
  
  Adds a ChangeListener to the model.
  
  Specified by:
  
  addChangeListener in interface Changeable
  
  Parameters:
  
  l - the ChangeListener to be added
- removeChangeListener
  
  public void removeChangeListener(ChangeListener l)
  
  Removes a ChangeListener from the model.
  
  Specified by:
  
  removeChangeListener in interface Changeable
  
  Parameters:
  
  l - the ChangeListener to be removed
- getChangeListeners
  
  public ChangeListener[] getChangeListeners()
  
  Returns an array of all the ChangeListeners added to this DefaultColorSelectionModel with addChangeListener.
  
  Returns:
  
  all of the ChangeListeners added, or an empty array if no listeners have been added
  
  Since:
  
  1.4
- fireStateChanged
  
  protected void fireStateChanged()
  
  Runs each ChangeListener's stateChanged method.
  See Also:
  
  EventListenerList