The SymbolSources configuration is used to define new SymbolSources (providers of values for substitution symbols).
Contributions are of the form:
<source name="..." before="..." after="..." class="..." service-id="..."/>
Sources are ordering based on the name
, before
and after
elements. before
and after
may be comma-seperated lists of other sources, may be the simple value
*
, or may be omitted.
Only one of class
and service-id
attributes
should be specified. The former is the complete name of a class
(implementing the SymbolSource interface). The second is used to
contribute a service (which must also implement the interface).