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Books /DPML Language/Guide/Dereference

The deference element uses indirection through a resource to obtain another (referenced) resource.

The form of the element is:

<dereference assignment="...">{reference-to-resource-with-resource-reference}</dereference>

This use of indirection is best described by example. The evaluation of the following dereference element:

<dereference assignment="response">res:/indirect</dereference>

Will cause the resource res:/indirect to be requested, which contains the value:

res:/message.txt

and then this value to request the resource res:/message.txt which contains the value:

Hello, from DPML!

Which means the result of

<sequence>
  <dereference assignment="response">res:/indirect</dereference>
</sequence>

is a response with the representation Hello, from DPML!.
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