oracle.dss.dataSource.common
Class NullStatusEvent

java.lang.Object
  |
  +--java.util.EventObject
        |
        +--oracle.dss.dataSource.common.QueryEvent
              |
              +--oracle.dss.dataSource.common.NullStatusEvent

All Implemented Interfaces:

java.lang.Cloneable, java.io.Serializable

public class NullStatusEvent

extends QueryEvent

Informs listeners when a query evaluation results in one or more null (empty) edges.

See Also:

Serialized Form

Constructor Summary

NullStatusEvent(java.lang.Object source, java.util.BitSet edges)
Constructor for this event.

Method Summary

boolean

isEdgeNull(int edge) Indicates whether a specified edge is null.

Methods inherited from class oracle.dss.dataSource.common.QueryEvent

clone

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

NullStatusEvent

public NullStatusEvent(java.lang.Object source,
                       java.util.BitSet edges)

Constructor for this event.

Parameters:

source - The source of the event, that is, a reference to the object that fired the event.

edges - A list of the null edges. In this list, to refer to edges, use the constants DataDirector.COLUMN_EDGE, DataDirector.PAGE_EDGE, or DataDirector.ROW_EDGE.

See Also:

DataDirector.COLUMN_EDGE, DataDirector.PAGE_EDGE, DataDirector.ROW_EDGE

Method Detail

isEdgeNull

public boolean isEdgeNull(int edge)

Indicates whether a specified edge is null.

Returns:

true if the specified edge is null; false if the specified edge is not null.