User Guide

Chapter 15: Interacting with Remote Servers 241

Connection caching actions and attributes

The following table shows which CFFTP attributes are required for CFFTP actions

when employing connection caching. If connection caching is not used, the

connection attributes USERNAME, PASSWORD, and SERVER must be specified.

Moving Complex Data Structures Across the Web with

WDDX

You can move complex data structures across the Web using Web Distributed Data

Exchange (WDDX). This capability is based on XML 1.0 and can be used to exchange

data between CFML applications and other applications.

Additionally, server-to-browser and browser-to-server JavaScript data exchanges can

be instantiated using WDDX. Server data can be transferred to the browser and

converted to JavaScript objects, while JavaScript data generated on the browser can be

serialized, which involves translating the native data structures into an abstract

representation in XML, and transferred to the application server. Conversely, you can

deserialize WDDX XML into a native data structure.

This functionality is encapsulated in the CFWDDX tag.

While WDDX is a valuable tool for ColdFusion developers, it’s utility is not limited to

CFML. WDDX serialization of common programming data structures such as arrays,

record sets, and structures enables data communication, via HTTP, across a range of

languages and platforms.

CFFTP Required Attributes by Action

Action Attributes Action Attributes

Open none Rename EXISTING

NEW

Close none Remove SERVER

ITEM

ChangeDir DIRECTORY GetCurrentDir none

CreateDir DIRECTORY GetCurrentURL none

ListDir NAME