ilog.cpl.datasource

Interface IlpReferenceHandler

public interface IlpReferenceHandler

Interface to be implemented to handle the updates of an object referred to by a reference.

Since:

JTGO 4.0

See Also:

IlpReferenceManager.addReferenceDescriptor(ilog.cpl.model.IlpClass, ilog.cpl.model.IlpAttribute, ilog.cpl.model.IlpClass, ilog.cpl.datasource.IlpReferenceHandler)

Method Summary

Modifier and Type	Method and Description
void	referenceAdded(IlpObject target, IlpObject source) Notifies that source hold a reference to target, and both source and target are available, i.e.: are in the data source.
void	referenceChanged(IlpObject target, IlpObject source, IlpAttribute attribute, Object oldValue) Notifies that an attribute value of the source object has changed.
void	referenceRemoved(IlpObject target, IlpObject source) Notifies that either source is removed from the data source or source no longer references target.

Method Detail

referenceAdded

void referenceAdded(IlpObject target,
                    IlpObject source)

Notifies that source hold a reference to target, and both source and target are available, i.e.: are in the data source.

Parameters:

target - The object referred to by source.

source - The object referencing target.

referenceRemoved

void referenceRemoved(IlpObject target,
                      IlpObject source)

Notifies that either source is removed from the data source or source no longer references target.

Parameters:

target - The object referred to by source.

source - The object referencing target.

referenceChanged

void referenceChanged(IlpObject target,
                      IlpObject source,
                      IlpAttribute attribute,
                      Object oldValue)

Notifies that an attribute value of the source object has changed. Called only when attribute does not hold a reference. Changes in an attribute that holds a reference results in a referenceRemoved() and a referenceAdded().

Parameters:

target - The object referred to by source.

source - The object referencing target.

attribute - The attribute for which the value is modified.

oldValue - The value of the attribute before the modification.