MACROMEDIA COLDFUSION 5 - INSTALING AND CONFIGURING SERVER Manual do Utilizador descarregar pdf (Página 18)

10 Chapter 2 Basic ColdFusion MX Administration

Client Variables page

Client variables let you store user information and preferences between sessions. Using

information from client variables, you can customize page content for individual users.

You enable client variable default settings in ColdFusion MX on the Client Variables

page of the Administrator. ColdFusion MX lets you store client variables in the following

ways:

• In a data source

If your data source uses a bundled JDBC driver, ColdFusion can automatically create

the necessary tables. If your data source uses the ODBC Socket or a third-party

JDBC driver, you must manually create the necessary CDATA and CGLOBAL

database tables. For more information, see Developing ColdFusion MX Applications

with CFML.

• As cookies in users’ web browsers

• In the operating system registry

Caution: Macromedia recommends that you do not store client variables in the registry

because it can critically degrade performance of the server. If you do use the registry to

store client variables, you must allocate sufficient memory and disk space.

You can override settings specified in the Client Variables page using the attributes of the

cfapplication tag. For more information, see Developing ColdFusion MX Applications

with CFML

Trusted cache Enable this option if you want ColdFusion MX to use cached

templates without checking whether they changed. For sites that

are not updated frequently, using this option minimizes file system

overhead.

Limit the maximum

number of cached

queries on the server

to [n] queries

Enable this option by entering a value to limit the maximum number

of cached queries that the server maintains. Cached queries allow

retrieval of result sets from memory rather than through a database

transaction. Because queries reside in memory, and query result set

sizes differ, you must provide a limit for the number of cached

queries. You enable cached queries with the cachedwithin or

cachedafter attributes of the cfquery tag.

Setting Description

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