Try to use:
<gvs-tag:value>
<esql:get-string>
<xsp:attribute
name="column"><xsp:expr>alias</xsp:expr></xsp:attribute>
</esql:get-string>
</gvs-tag:value>
I'm not sure that will work, as it is all a subtle question of the order
the
different logicsheets are applied.
As alternative thought, how about doing the alias assignment in your
SQL?
select foo,alias=bar from ...
HTH, Alfred.
> -----Original Message-----
> From: Chintalapaty, Sreedhar [mailto:[EMAIL PROTECTED]
> Sent: Freitag, 11. Juli 2003 20:59
> To: [EMAIL PROTECTED]
> Subject: Custom Logic Sheet, xsp:expr, etc.
>
>
> Hi,
>
> In my logic sheet, I have the need to pass a java variable
> into an XSL variable. For instance:
>
> 1. <esql:results>
> 2. <esql:row-results>
> 3. <trans>
> 4. <gvs-tag:row-id><esql:get-row-position/></gvs-tag:row-id>
> 5. <xsp:logic>
> 6. HashMap pAttributes = getItFromSomeWhere();
> 7. String alias = (String) pAttributes.get("alias");
>
> 8. <xsl:variable
> name="alias"><xsp:expr>String.valueOf(alias)</xsp:expr></xsl:variable>
> 9. <gvs-tag:attribute>
> 10.
> <gvs-tag:value><esql:get-string><xsl:attribute
> name="column"><xsl:value-of
> select="$alias"/></xsl:attribute></esql:get-string></gvs-tag:value>
> 11. </gvs-tag:attribute>
> 12. </xsp:logic>
> 13. </trans>
> 14. </esql:row-results>
> 15. </esql:results>
>
>
>
> GENERATED VERSION:
> The Cocoon generated code for lines 9 - 10 is as follows:
> XSPObjectHelper.xspExpr (contentHandler,
> EsqlHelper.getAscii(_esql_query.getResultSet(),
> "String.valueOf(alias)",
> "")
> );
>
> The problem is the quotes around String.valueOf(alias). When
> I run this, the query is run successfully, but the
> esql:get-string (lines 9-11) fails with the exception "Error
> getting ascii data for column String.valueOf(alias)".
>
> Obviously, it's trying to get the value of a column named
> "String.valueOf(alias)".
>
> MODIFIED VERSION:
> If I modify the generated code to
> XSPObjectHelper.xspExpr (contentHandler,
> EsqlHelper.getAscii(_esql_query.getResultSet(),
> String.valueOf(alias),
> "")
> );
> by removing the quotes around String.valueOf(alias), and then
> compile the modified java source, it runs fine, getting me
> what I expect it to return.
>
> The problem with this is that I have to modify the java
> source by hand every time I change the logic sheet. While
> this can be done in the short term, it is really not
> practical over the long term. So the question is: How can I
> write the logic scheet such that it will generate code that
> looks like the modified version above?
>
> Thanks for your help,
>
> Sreedhar
>
>
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