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The "DataSpec2" page has been changed by rezan: https://wiki.apache.org/devicemap/DataSpec2?action=diff&rev1=61&rev2=62 Attributes defined by the child will override matching parent attributes. - === Attribute Parsing === + === Attribute Transformers === An attribute map can contain attributes values which are parsed out of the input string. This is done by configuring the attribute as a set of transformers. The attribute can also @@ -257, +257 @@ === Notes === - If no attribute map is found, an empty map is used. + If no attribute map is found, an empty map is used. The patternId must always be returned with the attributeMap. + patternId is a reserved attribute name for this purpose. If a null pattern is returned from the previous step, this must be properly returned to the user. A null pattern must be discernible from a user defined pattern.
