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Reserved Parameters

Parameters have special meanings that may be different depending on their context, as outlined in the following table.

Parameter

Descriptor Element

XSL

HTTP/SOAP

_self

N/A

Set to the URL of the Descriptor being invoked

Set to the URL of the Descriptor to invoke

_target

Set to the URL of the Descriptor to invoke

N/A

N/A

_source

Set to the URL of the current Descriptor being invoked

N/A

N/A

_cacheClear

see HTTP/SOAP

see HTTP/SOAP

For Development Only

If set to any value, all cached Descriptors are cleared. This is useful for developers when testing a Descriptor. Ordinarily, Descriptors are cached for performance reasons and do not know if they have changed unless the cache is cleared

Note - Depending on the context, some variables are set, such as _self, while others need to be set, such as _target.

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