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Subject: RE: FOR-loop in xsp:logic section
Date: Tue, 17 May 2005 17:19:45 +0200
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Thread-Topic: FOR-loop in xsp:logic section
thread-index: AcVa767G8jllieSMQfGKUvqQES5xSAAAngnQ
From: "Nathaniel Alfred" <Alfred.Nathaniel@swx.com>
To: <users@cocoon.apache.org>
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The content of <xsp:logic> as immediate child of <xsp:page> is inserted
into the class scope and can therefore be used to define private methods
and variables.

For variables one has to be aware that the compiled XSP will be =
recycled,
and initializations will not be repeated.  A classic error is that

<xsp:page>
  <xsp:structure>
    <xsp:include>java.util.Date</xsp:include>
  </xsp:structure>
  <xsp:logic>
    Date now =3D new Date();
    String formatDate(Date date) {
      return date.toString();
    }
  </xsp:logic>
  <now>
    <xsp:expr>formatDate(now)</xsp:expr>
  </now>
<xsp:page>

prints the date when the XSP is compiled, and not when it is called.

HTH, Alfred.

-----Original Message-----
From: Michael Milvich [mailto:m.milvich@gmx.de]
Sent: Montag, 16. Mai 2005 18:51
To: users@cocoon.apache.org
Subject: Re: FOR-loop in xsp:logic section


Hallo,

thank you Chris for help. It's working!

I also I looked at the created *.java class and found out that cocoon is =

doing something strange, when the additional elements are missing. Here=20
is the code:

 XSPObjectHelper.xspExpr(contentHandler, obj);
      ;
           }
        }
            for (int i=3D0;i< 9; i++)
            i=3Di+1;


Is this a bug in cocoon?


regards

Michael Milvich

Chris Maloney wrote:

> Try wrapping your "xsp:logic" in some other element, like this:
>
> <?xml version=3D"1.0" encoding=3D"iso-8859-1"?>
> <xsp:page language=3D"java" xmlns:xsp=3D"http://apache.org/xsp"
>   xmlns:xsp-request=3D"http://apache.org/xsp/request/2.0"
>   xmlns:xsp-session=3D"http://apache.org/xsp/session/2.0"
>   xmlns:esql=3D"http://apache.org/cocoon/SQL/v2"
>   create-session=3D"true">
>   <xsp:structure>
>   </xsp:structure>
>  <OtherElement>
>   <xsp:logic>
>           for (int i=3D0;i&lt; 9; i++){
>               i=3Di+1;
>           }
>   </xsp:logic>
>  </OtherElement>
> </xsp:page>
>
> FWIW, it can help in debugging XSP problems to examine the ".java"=20
> file that gets created.  I'm using Cocoon 2.1.5.1, and that puts these =

> generated .java files into=20
> build/webapp/WEB-INF/work/cocoon-files/org/apache/cocoon/www/....  I=20
> think, in later versions, it puts them somewhere else, under a system=20
> temp directory.  In your case, search for getStatement_xsp.java (which =

> you can see from the error message, is the name of the .java file).
>
> HTH,
> Chris Maloney
>
>
> Michael Milvich wrote:
>
>> Hallo,
>>
>> i am using Cocoon 2.1.7, jdk 1.4 and tomcat 5.0.19.
>>
>> I would like to include in a xsp-page a small logic part and in this=20
>> logic section a FOR loop.
>> Everything works fine, only the FOR loop doesn't work. Here is my=20
>> simple code:
>>
>> <?xml version=3D"1.0" encoding=3D"iso-8859-1"?>
>> <xsp:page language=3D"java" xmlns:xsp=3D"http://apache.org/xsp"
>>    xmlns:xsp-request=3D"http://apache.org/xsp/request/2.0"
>>    xmlns:xsp-session=3D"http://apache.org/xsp/session/2.0"
>>    xmlns:esql=3D"http://apache.org/cocoon/SQL/v2"
>>    create-session=3D"true">
>>    <xsp:structure>
>>    </xsp:structure>
>>    <xsp:logic>
>>            for (int i=3D0;i&lt; 9; i++){
>>                i=3Di+1;
>>            }
>>    </xsp:logic>
>> </xsp:page>
>>
>> I get the following error when calling the xsp-page:
>>
>>> Error compiling getStatement_xsp: ERROR 1=20
>>> (org\apache\cocoon\www\apples\xsp\getStatement_xsp.java): ...=20
>>> XSPObjectHelper.xspExpr(contentHandler, obj); ; } // start error=20
>>> (lines 237-237) "Syntax error on token "}", { expected after this=20
>>> token" } // end error for (int i=3D0;i< 9; i++) i=3Di+1; ... ERROR 2 =

>>> (org\apache\cocoon\www\apples\xsp\getStatement_xsp.java): ... ; } }=20
>>> // start error (lines 239-239) "Syntax error on token(s), misplaced=20
>>> construct(s)" for (int i=3D0;i< 9; i++) // end error i=3Di+1; /** =
...=20
>>> Line 237, column 0: Syntax error on token "}", { expected after this =

>>> token Line 239, column 0: Syntax error on token(s), misplaced=20
>>> construct(s)
>>
>>
>>
>>
>> My question is. How can I include a FOR or a WHILE loop in the=20
>> xsp:logic section?
>>
>> Thanks for help in advance
>>
>> Michael Milvich
>>
>> --------------------------------------------------------------------- =

>> To unsubscribe, e-mail: users-unsubscribe@cocoon.apache.org For=20
>> additional commands, e-mail: users-help@cocoon.apache.org=20
>
>
>
>
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