ilog.cpl.model
Class AttributeValueEvent

java.lang.Object
  java.util.EventObject
      ilog.util.IlEventObject
          ilog.cpl.model.AttributeValueEvent

All Implemented Interfaces:

Serializable

public class AttributeValueEvent
extends IlEventObject

Events when an attribute value changes.

Since:

JTGO 3.0

See Also:

Serialized Form

Nested Class Summary

static class

AttributeValueEvent.Type Event types.

Field Summary

static Object

OLD_VALUE_UNAVAILABLE

Fields inherited from class java.util.EventObject

source

Constructor Summary

protected	AttributeValueEvent(IlEventType type, IlpAttributeValueHolder source, IlpAttribute attribute, Object newv, Object oldv) Constructor.
	AttributeValueEvent(IlEventType type, Object source, IlpAttribute attribute) Deprecated. Use AttributeValueEvent(IlpAttributeValueHolder, IlpAttribute) or { @link #AttributeValueEvent(IlpAttributeValueHolder, IlpAttribute, Object, Object)}
	AttributeValueEvent(IlpAttributeValueHolder source, IlpAttribute attribute) Constructor.
	AttributeValueEvent(IlpAttributeValueHolder source, IlpAttribute attribute, Object newValue, Object oldValue) Constructor.

Method Summary

IlpAttribute	getAttribute() Returns the attribute, the value of which was modified.
IlpAttributeValueHolder	getAttributeValueHolder() Returns the attribute value holder on which the value of an attribute was modified.
Object	getNewValue() Returns the value of the attribute after the modification signaled by this event.
Object	getOldValue() Returns the value of the attribute before the modification signaled by this event.
boolean	hasOldValue() Checks that the old value of the attribute is available.

Methods inherited from class ilog.util.IlEventObject

getType

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

Field Detail

OLD_VALUE_UNAVAILABLE

public static final Object OLD_VALUE_UNAVAILABLE

Internal method or field: do not use!

Constructor Detail

AttributeValueEvent

public AttributeValueEvent(IlpAttributeValueHolder source,
                           IlpAttribute attribute)

Constructor.

Parameters:

source - The attribute value holder on which the value of an attribute was modified.

attribute - The attribute, the value of which was modified.

AttributeValueEvent

public AttributeValueEvent(IlpAttributeValueHolder source,
                           IlpAttribute attribute,
                           Object newValue,
                           Object oldValue)

Constructor.

Parameters:

source - The attribute value holder on which the value of an attribute was modified.

attribute - The attribute, the value of which was modified.

newValue - The new attribute value.

oldValue - The previous value of the attribute.

Since:

JTGO 4.0

AttributeValueEvent

public AttributeValueEvent(IlEventType type,
                           Object source,
                           IlpAttribute attribute)

Deprecated. Use AttributeValueEvent(IlpAttributeValueHolder, IlpAttribute) or { @link #AttributeValueEvent(IlpAttributeValueHolder, IlpAttribute, Object, Object)}

Constructor.

Deprecated Since:

JTGO 4.0

AttributeValueEvent

protected AttributeValueEvent(IlEventType type,
                              IlpAttributeValueHolder source,
                              IlpAttribute attribute,
                              Object newv,
                              Object oldv)

Constructor.

Parameters:

type - Event type

source - Object that has changed

attribute - Attribute that has changed

newv - New attribute value

oldv - Old attribute value

Since:

JTGO 4.0

Method Detail

getAttributeValueHolder

public IlpAttributeValueHolder getAttributeValueHolder()

Returns the attribute value holder on which the value of an attribute was modified.

getAttribute

public IlpAttribute getAttribute()

Returns the attribute, the value of which was modified.

getNewValue

public Object getNewValue()

Returns the value of the attribute after the modification signaled by this event.

Returns:

The new value of the attribute.

Since:

JTGO 4.0

getOldValue

public Object getOldValue()

Returns the value of the attribute before the modification signaled by this event.

In some cases the old value can be unavailable. Use hasOldValue() to check the availability of the old value.

Returns:

The value of the attribute before the modification signaled by this event.

Since:

JTGO 4.0

hasOldValue

public boolean hasOldValue()

Checks that the old value of the attribute is available. Use this method prior to call getOldValue().

Returns:

true when the old value of the attribute is available.

Since:

JTGO 4.0