[stringtemplate-interest] How to access properties of an attribute of <first(multi-valued-attr)>

[Terence Parr]

if everything is public then perhaps you're testing .one on some other  
object?  Perhaps an array of array not an array or something?
Ter
On Feb 20, 2009, at 7:03 AM, <seitter.claus at muenchener-verein.de> wrote:

> Hi all,
> I just got stuck with the syntax of accessing properties of an  
> attribut that is the result of an operation like <first(multi-valued- 
> attr)>. My intention is to output text for java if clauses like
>
> if(id.equals("a.b.c"))
> {
>     rule_a_b_c();
> }
> else if(id.equals("a.b.d"))
> {
>     rule_a_b_d();
>  }
>
> .....    .//many of them
>
> else if(id.equals("a.b.z"))
> {
>     rule_a_b_z();
>  }
>
> here are my templates:
>
> entryMethod(once, rows3cols)::=<<
>   void rule_r<first(rows3cols).one>(Map\<String, Attribut\> attrs,  
> String id){
>    <if(once)>
>      rule_r<first(rows3cols).one>_default(attrs);
>    <else>
>        if(id.equals("<first(rows3col).three>")
>        {
>          rule_r<first(rows3cols).one>_<first(rows3cols).two>(attrs);
>        }
>      <rest(rows3cols):entryIfs()>
>    <endif>
>   }
> >>
> entryIfs()::=<<
>   else if(id.equals("<it.two>")
>   {
>     rule_r<it.one>_<it.three>(attrs);
>   }
> >>
>
> the template is called from an antl3 tree parser:
> //--------------------------------------------------------------------------------
> entrytoken
>   : ENTRY
>   -> entryMethod
>   (
>     once={$rulestart::auths.size()== 1},
>     rows3cols={Utils.makeRows3Cols(Utils.makeList(new  
> Integer($all::ruleCnt).toString(),$rulestart::auths.size()), 
> $rulestart::auths,Utils.dotList($rulestart::auths))}
>   )
>   ;
> //--------------------------------------------------------------------------------
> the Object array I pass in  is an Array of
> public class Row3Cols {
>
>   public String one;
>   public String two;
>   public String three;
>
>   public Row3Cols(String one, String two, String three) {
>     super();
>     this.one = one;
>     this.two = two;
>     this.three = three;
>   }
>
>   public String getOne() {
>     return one;
>   }
>
>   public String getTwo() {
>     return two;
>   }
>
>   public String getThree() {
>     return three;
>   }
>
> }
>
> What happens is are exceptions on runtime:
>
> Class [Lde.emvau.ruletool.compiler.Row3Cols; has no such attribute:  
> one in template context [ruleSetClass aliasesBlocksAndMethods  
> entryMethod]
> java.lang.NoSuchFieldException: one
> Exception in thread "main" java.util.NoSuchElementException: no such  
> attribute: rows3col in template context [ruleSetClass  
> aliasesBlocksAndMethods entryMethod else_subtemplate]
>
> What am I missing? Any help appreciated !
> Best Regards,
> Claus
>
>
>
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