ilog.views.gantt.event

Class ConstraintPropertyEvent

java.lang.Object

java.util.EventObject

ilog.views.gantt.util.event.IlvPropertyEvent

ilog.views.gantt.event.ConstraintPropertyEvent

All Implemented Interfaces:

ConstraintEvent, Serializable

Direct Known Subclasses:

ConstraintTypeEvent, ConstraintUserPropertyEvent

public class ConstraintPropertyEvent
extends IlvPropertyEvent
implements ConstraintEvent

ConstraintPropertyEvent is the superclass of all property aboutToChange and changed events fired by IlvConstraint's. Basic support is provided for storing the property's old and new values, along with veto capabilities for aboutToChange events. Concrete subclasses should provide typesafe accessors for the property's values. For example:

  class ConstraintFooEvent extends ConstraintPropertyEvent {

    public ConstraintFooEvent (IlvConstraint constraint,
                               Foo oldVal, Foo newVal,
                               boolean aboutToChangeEvent) {
      super(constraint, oldVal, newVal, aboutToChangeEvent);}

    public Foo getOldFoo () {
      return (Foo)getOldValue();}

    public Foo getNewFoo () {
      return (Foo)getNewValue();}

    public void setNewFoo (Foo newVal) {
      setNewValue(newVal);}

    }
 

Interested ConstraintListener's must register with the gantt data model to receive these events. IlvConstraint does not handle direct listener subscriptions.

See Also:

IlvConstraint, ConstraintListener, IlvGanttModel.addConstraintListener(ilog.views.gantt.event.ConstraintListener), Serialized Form

Field Summary

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
ConstraintPropertyEvent(IlvConstraint constraint, Object oldValue, Object newValue, boolean aboutToChangeEvent) Constructs a new ConstraintPropertyEvent generated by the specified constraint.

Method Summary

Modifier and Type	Method and Description
IlvConstraint	getConstraint() Returns the constraint where this event originated.

Methods inherited from class ilog.views.gantt.util.event.IlvPropertyEvent

getNewValue, getOldValue, isAboutToChangeEvent, isChangedEvent, isVetoed, setNewValue, veto

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstraintPropertyEvent

public ConstraintPropertyEvent(IlvConstraint constraint,
                               Object oldValue,
                               Object newValue,
                               boolean aboutToChangeEvent)

Constructs a new ConstraintPropertyEvent generated by the specified constraint.

Parameters:

constraint - the constraint where the event originated

oldValue - the property's previous value

newValue - the property's new value

aboutToChangeEvent - true if this is a property aboutToChange event or false if this is a property changed event.

Method Detail

getConstraint

public IlvConstraint getConstraint()

Returns the constraint where this event originated.

Specified by:

getConstraint in interface ConstraintEvent

Returns:

The IlvConstraint where this event originated.