code: public static BooleanOperation value() {
  		JcValue val = new WhenJcValue();
  		BooleanOperation ret = P.valueOf(val);
  		ASTNode an = APIObjectAccess.getAstNode(ret);
  		an.setClauseType(ClauseType.WHEN);
  		return ret;
  	}
docs: <div color='red' style="font-size:24px;color:red"><b><i><u>JCYPHER</u></i></b></div>
  <div color='red' style="font-size:18px;color:red"><i>WHEN part of a CASE expression pairs with <b>CASE.resultOf(...)</b></i></div>
  <br/>