title: Declaring Target parameter for @Reference Annotation in Apache Felix
body: <p>It defines documentation for felix SCR annotations .
  <a href="http://felix.apache.org/site/scr-annotations.html#SCRAnnotations-Reference" rel="nofollow">http://felix.apache.org/site/scr-annotations.html#SCRAnnotations-Reference</a></p>
  
  <p>I want to use , @Reference Annotation and also want to set target service as configurational parameter .</p>
  
  <p>Documentation says  : A service target filter to select specific services to be made available. In order to be able to overwrite the value of this value by a configuration property, this parameter must be declared. If the parameter is not declared, the respective declaration attribute will not be generated</p>
  
  <p>How to declare this parameter .</p>