@Override
 public MethodOperator getMethod() {
   return infoMethod.getMethod();
 }
 @Override
 public String getUriLiteral() {
   return infoMethod.getSyntax();
 }
 public MethodExpressionImpl(final InfoMethod infoMethod) {
   this.infoMethod = infoMethod;
   returnType = infoMethod.getReturnType();
   actualParameters = new ArrayList<CommonExpression>();
 }