ilog.cpl.datasource

Class DataSourceObjectEvent

java.lang.Object

java.util.EventObject

ilog.util.IlEventObject

ilog.cpl.datasource.DataSourceObjectEvent

All Implemented Interfaces:

Serializable

public class DataSourceObjectEvent
extends IlEventObject

Data source object event. This kind of event occurs on one object from a data source. These events are structure changed or attribute value changed events.

Since:

JTGO 3.0

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DataSourceObjectEvent.Type Event types.

Field Summary

Fields

Modifier and Type	Field and Description
static Object	OLD_VALUE_UNAVAILABLE This value should be used as attribute value when it is not possible to compute or retrieve the old value of an attribute during an attribute value change event.

Fields inherited from class java.util.EventObject

source

Constructor Summary

Constructors

Constructor and Description
DataSourceObjectEvent(IlpDataSource dataSource, IlpObject object, Class<?> structuralInterface) Constructor for structure changed events.
DataSourceObjectEvent(IlpDataSource dataSource, IlpObject object, IlpAttribute attribute) Constructor for attribute changed events.
DataSourceObjectEvent(IlpDataSource dataSource, IlpObject object, IlpAttribute attribute, Object newv, Object oldv) Constructor for attribute changed events.

Method Summary

Modifier and Type	Method and Description
IlpAttribute	getAttribute() Returns the attribute.
Object	getNewValue() Returns the value of the attribute after the modification signaled by this event.
IlpObject	getObject() Returns the IlpObject that has been modified.
Object	getOldValue() Returns the value of the attribute before the modification signaled by this event.
Class<?>	getStructuralInterface() Returns the structural interface.
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

This value should be used as attribute value when it is not possible to compute or retrieve the old value of an attribute during an attribute value change event.

Since:

JTGO 4.0

Constructor Detail

DataSourceObjectEvent

public DataSourceObjectEvent(IlpDataSource dataSource,
                             IlpObject object,
                             Class<?> structuralInterface)

Constructor for structure changed events.

Parameters:

dataSource - Datasource where the object has been modified

object - Business object that was modified

structuralInterface - Structural interface

DataSourceObjectEvent

public DataSourceObjectEvent(IlpDataSource dataSource,
                             IlpObject object,
                             IlpAttribute attribute)

Constructor for attribute changed events.

Parameters:

dataSource - Datasource where the event occurred

object - Business object whose attribute value has changed

attribute - Business attribute that has changed

DataSourceObjectEvent

public DataSourceObjectEvent(IlpDataSource dataSource,
                             IlpObject object,
                             IlpAttribute attribute,
                             Object newv,
                             Object oldv)

Constructor for attribute changed events.

Parameters:

dataSource - Datasource where the event occurred

object - Business object

attribute - Business attribute that has changed

newv - New attribute value

oldv - Old attribute value

Since:

JTGO 4.0

Method Detail

getObject

public IlpObject getObject()

Returns the IlpObject that has been modified.

getStructuralInterface

public Class<?> getStructuralInterface()

Returns the structural interface. This is relevant only for object structure changed events.

getAttribute

public IlpAttribute getAttribute()

Returns the attribute. This is relevant only for object attribute changed events.

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