Enhancements To Cfml; Better Reliability; Improved Performance - MACROMEDIA COLDFUSION 4.5-DEVELOPING WEB Develop Manual

Preface

Enhancements to CFML

Object Scripting — Instantiate and script objects using CFML script in addition to the
CFOBJECT tag easier integration with distributed object middleware such as COM and
CORBA.
Structured Exception Handling — Exception handling now offers hierarchical
exception handling that supports both greater customization and greater access to
internal exceptions.
String Conversion Functions — Convert strings quickly and easily to be compatible
with Java Script and XML standards.

Better reliability

Server Probes — Guarantee high availability by automatically detecting when a
ColdFusion Server or Web server hangs or stops, failing-over to a new machine in a
ColdFusion cluster, and restarting the server with problems. (Enterprise Edition only)
Improved Automatic Server Recovery — Monitor and automatically restart server
process in case of failures or critical errors on individual servers not deployed in a
cluster.
Clustering Support for Apache — Setup ColdFusion clusters on Linux and Solaris
using the Apache Web Server. (Enterprise Edition only)
Automatic Shared Variable Locking — Lock user and session variable reads
automatically at the server level to prevent destabilizing conflicts and control thread
write contentions. Configure variable locking to meet the specific needs of your
applications.
Individual Data Source Control — Enable and disable individual data sources
individually without affecting server availability for runtime data source maintenance
without server restarts.

Improved performance

Cisco Local Director Integration — Deliver very large scale sites with Cisco Local
Director intelligently balancing load based on the load metrics provided by the
ColdFusion Servers in a cluster. (Enterprise Edition only)
Client-Side Page Caching — Leverage browser page caching to avoid unnecessary
downloads of unchanged pages and improve overall site performance.
Programmatically control refresh of client-side cache to ensure users see most up-to-
date output.
White Space Removal — Reduce white space left by processed code in application
pages to make the pages smaller and faster. Control white space removal
programmatically or administratively.
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