Sun Java System Application Server Platform Edition 8.1 2005Q2 Update 2 Developer's Guide

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### Attributes

The following table describes attributes for the `constraint-field` element.

Table A–32 `constraint-field` Attributes

Attribute | Default | Description
--- | --- | ---
`name` | none | Specifies the input parameter name.
`scope` | `request.parameter` | (optional) Specifies the scope from which the input parameter is retrieved. Allowed values are `context.attribute`, `request.header`, `request.parameter`, `request.cookie`, `request.attribute`, and `session.attribute`.
`cache-on-match` | `true` | (optional) If `true`, caches the response if matching succeeds. Overrides the same attribute in a constraint-field-value subelement.
`cache-on-match-failure` | `false` | (optional) If `true`, caches the response if matching fails. Overrides the same attribute in a constraint-field-value subelement.

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