User Guide

390 Chapter 6: Components Dictionary
Delta interface (Flash Professional only)
ActionScript Interface Name mx.data.components.datasetclasses.Delta
The Delta interface provides access to the transfer object, collection, and transfer object-level
changes. With this interface you can access the new and previous values in a transfer object. For
example, if the delta packet was obtained from a data set, each delta would represent an added,
edited, or deleted row.
The Delta interface also provides access to messages returned by the associated server-side process.
For more information on client-server interactions, see “RDBMSResolver component (Flash
Professional only)” on page 636.
Use the Delta interface to examine the delta packet before sending changes to the server and to
review messages returned from server-side processing.
Method summary for the Delta interface
The following table lists the methods of the Delta interface.
Delta.addDeltaItem()
Availability
Flash Player 7.
Edition
Flash MX Professional 2004.
Usage
delta.addDeltaItem(deltaitem)
Parameters
deltaitem
DeltaItem instance to add to this delta.
Method Description
Delta.addDeltaItem() Adds the specified DeltaItem instance.
Delta.getChangeList() Returns an array of changes made to the current item.
Delta.getDeltaPacket() Returns the delta packet that contains the delta.
Delta.getId() Returns the unique ID of the current item within the
DeltaPacket collection.
Delta.getItemByName() Returns the specified DeltaItem object.
Delta.getMessage() Returns the message associated with the current item.
Delta.getOperation() Returns the operation that was performed on the current item
within the original collection.
Delta.getSource() Returns the transfer object on which the changes were
performed.
CHAPTER 6
Components Dictionary