Using Presto Attributes in Mashups
You can use attributes defined for Presto to provide input parameters or other variables in mashups. This is also sometimes called server-side binding or server templating.
You declare variables for Presto attributes, just as you would for any other variable. The value for the variable is resolved by the Presto Server at run-time from a Presto attribute.
Presto attributes can be defined for individual users, at a global level, within a user session or for a specifc HTTP header or cookie for a specific request. You can also define artifact attributes as extensions for specific mashables or mashups.
Mashup support for Presto attributes is:
For example, some mashable information sources require authentication or application IDs. These may be for a specific user or all users may use a single ID.
No support for request header or cookie attributes.
No support for artifact attributes.
